Ecophysiological steps of marine adaptation in extant and extinct non-avian tetrapods.
Cenozoic
Mesozoic
marine adaptation sequence
marine mammal
marine reptile
marine tetrapod
Journal
Biological reviews of the Cambridge Philosophical Society
ISSN: 1469-185X
Titre abrégé: Biol Rev Camb Philos Soc
Pays: England
ID NLM: 0414576
Informations de publication
Date de publication:
10 2021
10 2021
Historique:
revised:
10
04
2021
received:
29
05
2020
accepted:
13
04
2021
pubmed:
28
4
2021
medline:
26
10
2021
entrez:
27
4
2021
Statut:
ppublish
Résumé
Marine reptiles and mammals are phylogenetically so distant from each other that their marine adaptations are rarely compared directly. We reviewed ecophysiological features in extant non-avian marine tetrapods representing 31 marine colonizations to test whether there is a common pattern across higher taxonomic groups, such as mammals and reptiles. Marine adaptations in tetrapods can be roughly divided into aquatic and haline adaptations, each of which seems to follow a sequence of three steps. In combination, these six categories exhibit five steps of marine adaptation that apply across all clades except snakes: Step M1, incipient use of marine resources; Step M2, direct feeding in the saline sea; Step M3, water balance maintenance without terrestrial fresh water; Step M4, minimized terrestrial travel and loss of terrestrial feeding; and Step M5, loss of terrestrial thermoregulation and fur/plumage. Acquisition of viviparity is not included because there is no known case where viviparity evolved after a tetrapod lineage colonized the sea. A similar sequence is found in snakes but with the haline adaptation step (Step M3) lagging behind aquatic adaptation (haline adaptation is Step S5 in snakes), most likely because their unique method of water balance maintenance requires a supply of fresh water. The same constraint may limit the maximum body size of fully marine snakes. Steps M4 and M5 in all taxa except snakes are associated with skeletal adaptations that are mechanistically linked to relevant ecophysiological features, allowing assessment of marine adaptation steps in some fossil marine tetrapods. We identified four fossil clades containing members that reached Step M5 outside of stem whales, pinnipeds, sea cows and sea turtles, namely Eosauropterygia, Ichthyosauromorpha, Mosasauroidea, and Thalattosuchia, while five other clades reached Step M4: Saurosphargidae, Placodontia, Dinocephalosaurus, Desmostylia, and Odontochelys. Clades reaching Steps M4 and M5, both extant and extinct, appear to have higher species diversity than those only reaching Steps M1 to M3, while the total number of clades is higher for the earlier steps. This suggests that marine colonizers only diversified greatly after they minimized their use of terrestrial resources, with many lineages not reaching these advanced steps. Historical patterns suggest that a clade does not advance to Steps M4 and M5 unless these steps are reached early in the evolution of the clade. Intermediate forms before a clade reached Steps M4 and M5 tend to become extinct without leaving extant descendants or fossil evidence. This makes it difficult to reconstruct the evolutionary history of marine adaptation in many clades. Clades that reached Steps M4 and M5 tend to last longer than other marine tetrapod clades, sometimes for more than 100 million years.
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
1769-1798Informations de copyright
© 2021 Cambridge Philosophical Society.
Références
Abdullah, W. H. (1999). Organic facies variations in the Triassic shallow marine and deep marine shales of Central Spitsbergen, Svalbard. Marine and Petroleum Geology 16, 467-481.
Adam, P. J. (2018). Hindlimb anatomy. In Encyclopedia of Marine Mammals, 3rd Edition (eds B. Würsig, J. G. M. Thewissen and K. M. Kovacs), pp. 470-472. Elsevier, Burlington.
Allen, G. R. (1974). The marine crocodile, Crocodylus porosus, from Ponape, Eastern Caroline Islands, with notes on food habits of crocodiles from the Palau Archipelago. Copeia 1974, 553.
Allen, V., Elsey, R. M., Jones, N., Wright, J. & Hutchinson, J. R. (2010). Functional specialization and ontogenetic scaling of limb anatomy in Alligator mississippiensis. Journal of Anatomy 216, 423-445.
Amson, E., Argot, C., McDonald, H. G. & de Muizon, C. (2015a). Osteology and functional morphology of the forelimb of the marine sloth Thalassocnus (Mammalia, Tardigrada). Journal of Mammalian Evolution 22, 169-242.
Amson, E., Argot, C., McDonald, H. G. & de Muizon, C. (2015b). Osteology and functional morphology of the hind limb of the marine sloth Thalassocnus (Mammalia, Tardigrada). Journal of Mammalian Evolution 22, 355-419.
Anquetin, J., Püntener, C. & Joyce, W. G. (2017). A review of the fossil record of turtles of the clade Thalassochelydia. Bulletin of the Peabody Museum of Natural History 58, 317-369.
Babonis, L. S. & Brischoux, F. (2012). Perspectives on the convergent evolution of tetrapod salt glands. Integrative and Comparative Biology 52, 245-256.
Bajpai, S. & Gingerich, P. D. (1998). A new Eocene archaeocete (Mammalia, Cetacea). From India and the time of origin of whales. Proceedings of the National Academy of Sciences of the United States of America 95, 15464-15468.
Bakkegard, K. A. & Guyer, C. (2004). Sexual size dimorphism in the Red Hills salamander, Phaeognathus hubrichti (Caudata: Plethodontidae: Desmognathinae). Journal of Herpetology 38, 8-15.
Baldwin, J. D., Oleinik, A., Denton, M. J., Demopoulos, A. W. J. J. & Hart, K. M. (2016). Diet of diamondback terrapins (Malaclemys terrapin) in subtropical mangrove habitats in South Florida. Chelonian Conservation and Biology 15, 54-61.
Ballance, L. T. (2009). Cetacean ecology. Perrin, W. F., Würsig, B. & Thewissen, J. G. M., eds., Encyclopedia of Marine Mammals. 2nd Edition, Burlington, MA: Elsevier, 196-201.
Barnes, L. G. (2013). A new genus species of late Miocene paleoparadoxiid (Mammalia, Desmostylia) from California. Natural History Museum of Los Angeles County, Contribution in Science 512, 51-114.
Barros, N. B. & Clarke, M. R. (2009). Diet. In Encyclopedia of Marine Mammals, 2nd, 2nd ed. Edition (eds W. F. Perrin, B. Würsig and J. G. M. Thewissen), pp. 311-316. Elsevier, Burlington, MA.
Bebej, R. M. (2009). Swimming mode inferred from skeletal proportions in the fossil pinnipeds Enaliarctos and Allodesmus (Mammalia, Carnivora). Journal of Mammalian Evolution 16, 77-97.
Bennett, D. (2004). Varanus dumerilii. In Varanoid Lizards of the World (eds E. R. Pianka, D. R. King and R. A. King), pp. 172-175. Indiana University Press, Bloomington.
Benson, R. B. J., Evans, M. & Druckenmiller, P. S. (2012). High diversity, low disparity and small body size in plesiosaurs (Reptilia, Sauropterygia) from the Triassic-Jurassic boundary. PLoS One 7, e31838.
Benson, R. B. J., Ketchum, H. F., Noè, L. F. & Gómez-Pérez, M. (2011). New information on Hauffiosaurus (Reptilia, Plesiosauria) based on a new species from the alum shale member (lower Toarcian: lower Jurassic) of Yorkshire, UK. Palaeontology 54, 547-571.
Berta, A. & Ray, C. E. (1990). Skeletal morphology and locomotor capabilities of the archaic pinniped Enaliarctos mealsi. Journal of Vertebrate Paleontology 10, 141-157.
Bonnet, X. & Brischoux, F. (2008). Thirsty Sea snakes forsake refuge during rainfall. Austral Ecology 33, 911-921.
Bonnet, X., Ineich, I. & Shine, R. (2005). Terrestrial locomotion in sea snakes: the effects of sex and species on cliff-climbing ability in sea kraits (Serpentes, Elapidae, Laticauda). Biological Journal of the Linnean Society 85, 433-441.
Borden, R. (2007). Varanus salvator (Asian water monitor) migration. Biwak 1, 84.
Bowen, W. D., Beck, C. A. & Austin, D. A. (2009). Pinniped ecology. In Encyclopedia of Marine Mammals, 2nd Edition, pp. 852-861. Burlington, MA: Elsevier.
Bowyer, R. T., Blundell, G. M., Ben-David, M., Jewett, S. C., Dean, T. A. & Duffy, L. K. (2003). Effects of the Exxon Valdez oil spill on river otters: injury and recovery of sentinel species. Wildlife Monographs 153, 1-53.
Brischoux, F., Tingley, R., Shine, R. & Lillywhite, H. B. (2013). Behavioral and physiological correlates of the geographic distributions of amphibious sea kraits (Laticauda spp.). Journal of Sea Research 76, 1-4.
Buck, N. (2016). Captive fishing cats in European zoos. In Proceedings of the First International Fishing Cat Conservation Symposium (eds A. Appel and J. W. Duckworth), pp. Bad Marienberg, Germany, and Saltford, Bristol, United Kingdom: Fishing Cat Working Group, 55-57.
Butler, J. A., Heinrich, G. L. & Mitchell, M. L. (2012). Diet of the Carolina diamondback terrapin (Malaclemys terrapin centrata) in northeastern Florida. Chelonian Conservation and Biology 11, 124-128.
Caldwell, M. W. (1996). Ontogeny and phylogeny of the mesopodial skeleton in mosasauroid reptiles. Zoological Journal of the Linnean Society 116, 407-436.
Carroll, R. L. (1985). A pleurosaur from the lower Jurassic and the taxonomic position of the Sphenodontida. Palaeontographica Abteilung A 189, 1-28.
Carroll, R. L. & Dong, Z.-M. (1991). Hupehsuchus, an enigmatic aquatic reptile from the Triassic of China, and the problem of establishing relationships. Philosophical Transactions - Royal Society of London, B 331, 131-153.
Chen, X.-H., Motani, R., Cheng, L., Jiang, D. & Rieppel, O. (2014a). A small short-necked hupehsuchian from the lower Triassic of Hubei Province, China. PLoS One 9, e115244.
Chen, X.-H., Motani, R., Cheng, L., Jiang, D.-Y. & Rieppel, O. (2014b). The enigmatic marine reptile Nanchangosaurus from the lower Triassic of Hubei, China and the phylogenetic affinities of Hupehsuchia. PLoS One 9, e102361.
Cheng, L., Chen, X., Zhang, B. & Cai, Y. (2011). New study of Anshunsaurus huangnihensis Cheng, 2007 (Reptilia: Thalattosauria): revealing its transitiona1 position in Askeptosauridae. Acta Geologica Sinica, 85, 1231-1237.
Cheng, L., Motani, R., Jiang, D., Yan, C., Tintori, A. & Rieppel, O. (2019). Early Triassic marine reptile representing the oldest record of unusually small eyes in reptiles indicating non-visual prey detection. Scientific Reports 9, 152.
Cheng, Y.-N. N., Holmes, R., Wu, X.-C. C. & Alfonso, N. (2009). Sexual dimorphism and life history of Keichousaurus hui (Reptilia: Sauropterygia). Journal of Vertebrate Paleontology 29, 401-408.
Cheng, Y. N., Wu, X. C., Sato, T. & Shan, H. Y. (2012). A new eosauropterygian (Diapsida, Sauropterygia) from the Triassic of China. Journal of Vertebrate Paleontology 32, 1335-1349.
Cheng, Y. N., Wu, X. C., Sato, T. & Shan, H. Y. (2016). Dawazisaurus brevis, a new Eosauropterygian from the Middle Triassic of Yunnan, China. Acta Geologica Sinica, 90, 401-424.
Coates, M. I. (1996). The Devonian tetrapod Acanthostega gunnari Jarvik: postcranial anatomy, basal tetrapod interrelationships and patterns of skeletal evolution. Transactions of the Royal Society of Edinburgh, Earth Sciences 87, 363-421.
Cooper, L. N. (2009). Forelimb anatomy. In Encyclopedia of Marine Mammals, 2nd Edition (eds W. F. Perrin, B. Würsig and J. G. M. Thewissen), pp. 449-452. Elsevier, Burlington.
Cooper, L. N. (2018). Forelimb anatomy. In Encyclopedia of Marine Mammals, 3rd Edition (eds B. Würsig, J. G. M. Thewissen and K. M. Kovacs), pp. 385-388. Elsevier, Burlington.
Cooper, L. N., Thewissen, J. G. M., Bajpai, S. & Tiwari, B. N. (2012). Postcranial morphology and locomotion of the Eocene raoellid Indohyus (Artiodactyla: Mammalia). Historical Biology 24, 279-310.
Costa, D. P. (2018). Osmoregulation. In Perring, W. F., Wursig, B. G. & Thewissen, J. G. M., eds., Encyclopedia of Marine Mammals, pp. 659-664. Academic Press, 3rd Edition, London.
Cota, M., Chan-Ard, T., Mekchai, S. & Laoteaw, S. (2008). Geographical distribution, instinctive feeding behavior and report of nocturnal activity of Varanus dumerilii in Thailand. Biawak 2, 152-158.
Cota, M. & Sommerlad, R. (2013). Notes and observations on the fish prey of Varanus salvator macromaculatus (Reptilia: Squamata: Varanidae) in Thailand with a review of the fish prey of the Varanus salvator complex known to date. Biawak 7, 63-70.
Cowan, F. B. M. (1974). Observations on extrarenal excretion by orbital glands and osmoregulation in Malaclemys terrapin. Comparative Biochemistry and Physiology 48, 489-500.
Cowan, F. B. M. (1990). Does the lacrimal salt gland of Malaclemys terrapin have a significant role in osmoregulation? Canadian Journal of Zoology-Revue Canadienne De Zoologie 68, 1520-1524.
Cox, C. B. & Smith, D. G. (1973). Review of Triassic vertebrate faunas of Svalbard. Geological Magazine 110, 405-418.
Crocker, D. E. & Costa, D. P. (2009). Pinniped physiology. In Encyclopedia of Marine Mammals, 2nd Edition (eds W. F. Perrin, B. Würsig and J. G. M. Thewissen), pp. 873-878. Elsevier, Burlington.
Cuthbertson, R. S., Mallon, J. C., Campione, N. E. & Holmes, R. B. (2007). A new species of mosasaur (Squamata: Mosasauridae) from the Pierre shale (lower Campanian) of Manitoba. Canadian Journal of Earth Sciences 44, 593-606.
Dantzler, W. H. & Bradshaw, S. D. (2008). Osmotic and ionic regulation in reptiles. In Osmotic and Ionic Regulation, pp. 443-503. CRC Press, Boca Raton.
Davenport, J. & Macedo, E. A. (1990). Behavioural osmotic control in the euryhaline diamondback terrapin Malaclemys terrapin: responses to low salinity and rainfall. Journal of Zoology 220, 487-496.
Davenport, J. & Ward, J. F. (1993). The effects of salinity and temperature on appetite in the diamondback terrapin Malaclemys terrapin (Latreille). Herpetological Journal 3, 95-98.
Davenport, J. & Wong, T. M. (1986). Observations on the water economy of the estuarine turtles Batagur baska (gray) and Callagur borneoensis (Schlegel and Muller). Comparative Biochemistry and Physiology A-Physiology 84, 703-707.
de Lisle, H. F., Lisle, H. F. D. E. & Box, P. O. (2007). Observations on Varanus s. salvator in North Sulawesi. Biawak 1, 59-66.
de Souza, L. M. & Santucci, R. M. (2014). Body size evolution in Titanosauriformes (Sauropoda, Macronaria). Journal of Evolutionary Biology 27, 2001-2012.
DeBlois, M. C. & Motani, R. (2019). Flipper bone distribution reveals flexible trailing edge in underwater flying marine tetrapods. Journal of Morphology 280, 908-924.
Dececchi, T. A. & Larsson, H. C. E. (2013). Body and limb size dissociation at the origin of birds: uncoupling allometric constraints across a macroevolutionary transition. Evolution 67, 2741-2752.
Dissanayaka, M., Karunarathna, S. S., Surasinghe, T. D., de Silva, M. C., Madawala, M. B., Gabadage, D. E. & Botejue, W. M. (2015). Dietary habits of Varanus salvator salvator in Sri Lanka with a new record of predation on an introduced clown knifefish, Chitala ornata. The Herpetological Bulletin 133, 23-28.
Dodson, P. (1990). Counting dinosaurs: how many kinds were there? Proceedings of the National Academy of Sciences of the United States of America 87, 7608-7612.
Domning, D. P. (2000). The readaptation of Eocene sirenians to life in water. Historical Biology 14, 115-119.
Domning, D. P. (2001). The earliest known fully quadrupedal sirenian. Nature 413, 625-627.
Domning, D. P. (2009). Sirenian evolution. In Perrin, W. F., Würsig, B. & Thewissen, J. G. M., Encyclopedia of Marine Mammals, 2nd Edition, pp. 1016-1019. Burlington, MA: Elsevier.
Domning, D. P. & de Buffrénil, V. (1991). Hydrostasis in the Sirenia: quantitative data and functional interpertations. Marine Mammal Science 7, 331-368.
Domning, D. P., Heal, G. J. & Sorbi, S. (2017). Libysiren sickenbergi, gen. Et sp. nov.: a new sirenian (Mammalia, Protosirenidae) from the middle Eocene of Libya. Journal of Vertebrate Paleontology 37, e1299158.
Doube, M., Lodhia, K., Kłosowski, M. M., Shefelbine, S. J., Chua, M. Y., Felder, A. A. & Hutchinson, J. R. (2018). Limb bone scaling in hopping macropods and quadrupedal artiodactyls. Royal Society Open Science 5, 180152.
Druckenmiller, P. S., Kelley, N. P., Metz, E. T. & Baichtal, J. (2020). An articulated late Triassic (Norian). Thalattosauroid from Alaska and ecomorphology and extinction of Thalattosauria. Scientific Reports 10, 1746.
Dryden, G. & Ziegler, T. (2004). Varanus indicus. In Varanoid Lizards of the World (eds E. R. Pianka, D. R. King and R. A. King), pp. 184-188. Indiana University Press, Bloomington.
Dunson, W. A. (1968). Salt gland secretion in the pelagic sea snake Pelamis. American Journal of Physiology 215, 1512-1517.
Dunson, W. A. (1969). Electrolyte excretion by the salt gland of the Galápagos marine iguana. The American Journal of Physiology 216, 995-1002.
Dunson, W. A. (1970). Some aspects of electrolyte and water balance in three estuarine reptiles, the diamondback terrapin, American and ‘salt water’ crocodiles. Comparative Biochemistry and Physiology 32, 151-174.
Dunson, W. A. (1974). Salt gland secretion in a mangrove monitor lizard. Comparative Biochemistry and Physiology 47, 1245-1255.
Dunson, W. A. (1980). The relation of sodium and water balance to survival in sea water of estuarine and freshwater races of the snakes Nerodia fasciata, N. sipedon and N. valida. Copeia 1980, 268.
Dunson, W. A. (1984). The contrasting roles of salt glands, the integument and behavior in osmoregulation of marine reptiles. Osmoregulation in Estuarine and Marine Animals 9, 107-129.
Dunson, W. A. & Dunson, M. K. (1974). Interspecific differences in fluid concentration and secretion rate of sea snake salt glands. American Journal of Physiology 227, 430-438.
Dunson, W. A. & Dunson, M. K. (1979). A possible new salt gland in a marine homalopsid snake (Cerberus rhynchops). Copeia 1979, 661-672.
Dunson, W. A. & Mazzotti, F. J. (1989). Salinity as a limiting factor in the distribution of reptiles in Florida bay - a theory for the estuarine origin of marine snakes and turtles. Bulletin of Marine Science 44, 229-244.
Dunson, W. A. & Minton, S. A. (1978). Diversity, distribution, and ecology of Philippine marine snakes (Reptilia, Serpentes). Journal of Herpetology 12, 281-286.
Dunson, W. A. & Moll, E. O. (1980). Osmoregulation in sea water of hatchling emydid turtles, Callagur borneoensis, from a Malaysian sea beach. Journal of Herpetology 14, 31-36.
Dunson, W. A. W. & Taub, A. M. (1967). Extrarenal salt excretion in sea snakes (Laticauda). The American Journal of Physiology 213, 975-982.
Dutchak, A. R., Caldwell, M. W., Dutchak, A. R. & Caldwell, M. W. (2009). A Redescription of Aigialosaurus (= Opetiosaurus) bucchichi (Kornhuber, 1901) (Squamata: Aigialosauridae) with comments on mosasauroid systematics. Journal of Vertebrate Paleontology 29, 437-452.
Editorial (2008). On the cover: Varanus salvator macromaculatus. Biawak 2, 1.
Eisemberg, C. C., Rose, M., Yaru, B., Amepou, Y. & Georges, A. (2015). Salinity of the coastal nesting environment and its association with body size in the estuarine pig-nosed turtle. Journal of Zoology 295, 65-74.
Elliott, A. B. & Karunakaran, L. (1974). Diet of Rana cancrivora in fresh water and brackish water environments. Journal of Zoology 174, 203-215.
English, A. W. (1976). Functional anatomy of the hands of fur seals and sea lions. American Journal of Anatomy 147, 1-17.
Enos, P. (1989). Islands in the bay-a key habitat of Florida bay. Bulletin of Marine Science 44, 365-386.
Evers, S. W., Barrett, P. M. & Benson, R. B. J. (2019). Anatomy of Rhinochelys pulchriceps (Protostegidae) and marine adaptation during the early evolution of chelonioids. PeerJ 2019, 1-94.
Ezcurra, M. D. (2016). The phylogenetic relationships of basal archosauromorphs, with an emphasis on the systematics of proterosuchian archosauriforms. PeerJ 2016, e1778.
Feldman, A. & Meiri, S. (2013). Length - mass allometry in snakes. Biological Journal of the Linnean Society 108, 161-172.
Fujii, J. A., McLeish, D., Brooks, A. J., Gaskell, J. & van Houtan, K. S. (2018). Limb-use by foraging marine turtles, an evolutionary perspective. PeerJ 6, e4565.
Gaffney, E. S. (1990). The comparative osteology of the Triassic turtle Proganochelys. Bulletin of the American Museum of Natural History 194, 1-263.
Gao, T., Li, D. Q., Li, L. F. & Yang, J. T. (2019). The first record of freshwater plesiosaurian from the middle Jurassic of Gansu, NW China, with its implications to the local palaeobiogeography. Journal of Palaeogeography 8, 27.
Garcia, G., Bardet, N., Houssaye, A., Pereda-Suberbiola, X. & Valentin, X. (2015). Mosasauroid (Squamata) discovery in the Late Cretaceous (Early Campanian) continental deposits of Villeveyrac-L'Olivet, Southern France. Comptes Rendus - Palevol 14, 495-505.
Garcia, V. O. S., Papa, R. D. S., Briones, J. C. A., Mendoza, N., Okuda, N., Diesmos, A. C., Arvin, C. D., Norman, M., Noboru, O., Vhon, O. S. G., Jonathan, C. A. B. & Rey, D. S. P. (2014). Food habits and distribution of the Lake Taal Sea Snake (Hydrophis semperi Garman 1881) and the sympatric little file snake (Acrochordus granulatus Schneider 1799) in Lake Taal, Philippines. Asian Herpetological Research 5, 255-262.
Gearty, W., McClain, C. R. & Payne, J. L. (2018). Energetic tradeoffs control the size distribution of aquatic mammals. Proceedings of the National Academy of Sciences of the United States of America 115, 4194-4199.
Gentry, A. D., Ebersole, J. A. & Kiernan, C. R. (2019). Asmodochelys parhami, a new fossil marine turtle from the Campanian Demopolis chalk and the stratigraphic congruence of competing marine turtle phylogenies. Royal Society Open Science 6, 191950.
Georges, A. & Wombey, J. C. (1993). Family Carettochelyidae. In Fauna of Australia Volume 2A Amphibia and Reptilia (eds C. G. Glasby, G. L. B. Ross and P. L. Beesley), pp. 1-8. AGPS, Canberra.
Gingerich, P. D., Ul-Haq, M., von Koenigswald, W., Sanders, W. J., Smith, B. H. & Zalmout, I. S. (2009). New protocetid whale from the middle Eocene of Pakistan: birth on land, precocial development, and sexual dimorphism. PLoS One 4, e4366.
Gingerich, P. D., Wells, N. A., Russell, D. E. & Shah, S. M. I. (1983). Origin of whales in epicontinental remnant seas: new evidence from the early Eocene of Pakistan. Science 220, 403-406.
Gordon, M. S., Schmidt-Nielsen, K. & Kelly, H. M. (1961). Osmotic regulation in the crab-eating frog (Rana cancrivora). Journal of Experimental Biology 38, 659-678.
Grant, C. (1946). The genus Tretanorhinus in Cuba and the isle of pines. The Journal of Agriculture of the University of Puerto Rico 30, 102-117.
Grigg, G. C., Beard, L. A., Moulton, T., Queirol Melo, M. T. & Taplin, L. E. (1998). Osmoregulation by the broad-snouted caiman, Caiman latirostris. Journal of Comparative Physiology B 168, 445-452.
Groombridge, B. & Wright, L. (1982). The IUCN Amphibia-Reptilia Red Data Book. Part 1, Testudines, Crocodylia, Rhynchocephalia. IUCN Publications, Gland.
Günther, A. C. L. G. (1864). The Reptiles of British India. Ray Society Publication, London.
Haines, R. W. (1969). Epiphyses and sesamoids. In Biology of the Reptilia. Volume I. Morphology A (eds C. Gans, A. D.'. A. Bellairs and T. S. Parsons), pp. 81-115. Academic Press, London.
Hansen, H. R., Hector, B. L. & Feldmann, J. (2003). A qualitative and quantitative evaluation of the seaweed diet of north Ronaldsay sheep. Animal Feed Science and Technology 105, 21-28.
Harding, L. H. E. H. (2015). Nasalis larvatus (Primates: Colobini). Mammalian Species 47(926), 84-99.
Hay, O. P. (1908). The fossil turtles of North America. Carnegie Institution of Washington, Publication 75, 1-555.
Hayssen, V. (2008). Bradypus pygmaeus (Pilosa: Bradypodidae). Mammalian Species 812, 1-4.
Heatwole, H., Busack, S. & Cogger, H. (2005). Geographic variation in sea kraits of the Laticauda colubrina complex (Serpentes: Elapidae: Hydrophiinae: Laticaudini). Herpetological Monographs 19, 1.
Heatwole, H. & Cogger, H. G. (1993). Family Hydrophiidae. In Fauna of Australia Volume 2A Amphibia and Reptilia (Volume 2A), pp. 310-318. AGPS, Canberra.
Hedges, S. B. & Thomas, R. (1992). A new marsh-dwelling species of Eleutherodactylus from Haiti (Anura, Leptodactylidae). Journal of Herpetology 26, 191-195.
Herrel, A., Meyers, J. J. & Vanhooydonck, B. (2002). Relations between microhabitat use and limb shape in phrynosomatid lizards. Biological Journal of the Linnean Society 77, 149-163.
Herrera, Y., Fernández, M. S. & Gasparini, Z. (2013). Postcranial skeleton of Cricosaurus araucanensis (Crocodyliformes: Thalattosuchia): morphology and palaeobiological insights. Alcheringa 37, 285-298.
Hirayama, R. (1998). Oldest known sea turtle. Nature 392, 705-708.
Hoffstetter, R. & Gasc, J.-P. (1969). Vertebrae and ribs. In Biology of the Reptilia. Volume I. Morphology A. (eds C. Gans, A. D.'. A. Bellairs and T. S. Parsons), pp. 201-310. Academic Press, London.
Horn, H.-G. & Gaulke, M. (2004). Varanus salvator (Subspecies). In Varanoid Lizards of the World (eds E. R. Pianka, D. R. King and R. A. King), pp. 258-271. Indiana University Press, Bloomington.
Houssaye, A. & Fish, F. E. (2016). Functional (secondary). Adaptation to an aquatic life in vertebrates: an introduction to the symposium. Integrative and Comparative Biology 56, 1266-1270.
Houssaye, A., Rage, J. C., Bardet, N., Vincent, P., Amaghzaz, M. & Meslouh, S. (2013). New highlights about the enigmatic marine snake Palaeophis maghrebianus (Palaeophiidae; Palaeophiinae). From the Ypresian (lower Eocene). Phosphates of Morocco. Palaeontology 56, 647-661.
Huang, J., Motani, R., Jiang, D., Tintori, A., Rieppel, O., Zhou, M., Ren, X.-X. & Zhang, R. (2019). The new ichthyosauriform Chaohusaurus brevifemoralis (Reptilia, Ichthyosauromorpha) from Majiashan, Chaohu, Anhui Province, China. PeerJ 7, e7561.
Hutson, J. D. & Hutson, K. N. (2013). Using the American alligator and a repeated-measures design to place constraints on in vivo shoulder joint range of motion in dinosaurs and other fossil archosaurs. The Journal of Experimental Biology 216, 275-284.
Iijima, M., Kubo, T. & Kobayashi, Y. (2018). Comparative limb proportions reveal differential locomotor morphofunctions of alligatoroids and crocodyloids. Royal Society Open Science 5, 171774.
Inuzuka, N. (1984). Skeletal restoration of the desmostylians: Herpetiform mammals. Memoirs of the Faculty of Science, Kyoto University, Series of Biology 9, 157-253.
Jackson, R. (2005). The poorly known rusty monitor Varanus semiremex: history, natural history, captive breeding and husbandry. Herpetofauna 35, 15-24.
James, C. D., Losos, J. B. & King, D. R. (1992). Reproductive biology and diets of goannas (Reptilia, Varanidae) from Australia. Journal of Herpetology 26, 128-136.
James, S. W. & Tremul, P. R. (2017). Field observations provide an insight into the ecology of the rusty monitor (Varanus semiremex) in South-Eastern Queensland, Australia. Memoirs of the Queensland Museum | Nature 60, 77-89.
Jayne, B. C., Voris, H. K. & Heang, K. B. (1988). Diet, feeding behavior, growth, and numbers of a population of Cerberus rynchops (Serpentes: Homalopsinae) in Malaysia. Fieldiana Zoology New Series 50, 1-15.
Jayne, B. C., Ward, T. J. & Voris, H. K. (1995). Morphology, reproduction, and diet of the marine homalopsine snake Bitia hydroides in peninsular Malaysia. Copeia 1995, 800-808.
Ji, C., Jiang, D.-Y., Motani, R., Hao, W.-C., Sun, Z.-Y. & Cai, T. (2013). A new juvenile specimen of Guanlingsaurus (Ichthyosauria, Shastasauridae) from the upper triassic of southwestern China. Journal of Vertebrate Paleontology 33, 340-348.
Ji, C., Jiang, D.-Y., Rieppel, O., Motani, R., Tintori, A. & Sun, Z.-Y. (2014). A new specimen of Nothosaurus youngi from the middle Triassic of Guizhou, China. Journal of Vertebrate Paleontology 34, 465-470.
Jiang, D.-Y., Hao, W.-C., Sun, Y.-L., Motani, R., Schmitz, L., Hao, W.-C., Rieppel, O. C. & Sun, Z.-Y. (2008a). First record of Placodontoidea (Reptilia, Sauropterygia, Placodontia) from the eastern tethys. Journal of Vertebrate Paleontology 28, 904-908.
Jiang, D.-Y., Lin, W., Rieppel, O., Motani, R. & Sun, Z.-Y. (2019). A new Anisian (middle Triassic) eosauropterygian (Reptilia, Sauropterygia) from Panzhou, Guizhou Province, China. Journal of Vertebrate Paleontology 38, e1480113.
Jiang, D.-Y., Motani, R., Hao, W.-C., Schmitz, L., Rieppel, O., Sun, Y.-L. & Sun, Z.-Y. (2008b). New primitive ichthyosaurian (Reptilia, Diapsida) from the middle Triassic of Panxian, Guizhou, southwestern China and its position in the Triassic biotic recovery. Progress in Natural Science-Materials International 18, 1315-1319.
Jiang, D.-Y., Motani, R., Huang, J.-D., Tintori, A., Hu, Y.-C., Rieppel, O., Fraser, N. C., Ji, C., Kelley, N. P., Fu, W.-L. & Zhang, R. (2016). A large aberrant stem ichthyosauriform indicating early rise and demise of ichthyosauromorphs in the wake of the end-Permian extinction. Scientific Reports 6, 26232.
Jiang, D.-Y., Motani, R., Tintori, A., Rieppel, O. C., Chen, G.-B., Huang, J.-D., Zhang, R., Sun, Z.-Y. & Ji, C. (2014). The early Triassic eosauropterygian Majiashanosaurus discocoracoidis, gen. Et sp. nov. (Reptilia, Sauropterygia), from Chaohu, Anhui Province, People's Republic of China. Journal of Vertebrate Paleontology 34, 1044-1052.
Jiang, D.-Y., Rieppel, O., Motani, R., Hao, W.-C., Sun, Y.-L., Schmitz, L. & Sun, Z.-Y. (2008c). A new middle Triassic Eosauropterygian (Reptilia, Sauropterygia) from southwestern China. Journal of Vertebrate Paleontology 28, 1055-1062.
Jiang, D.-Y., Rieppel, O., Fraser, N. C., Motani, R., Hao, W.-C., Tintori, A., Sun, Y.-L. & Sun, Z.-Y. (2011). New information on the protorosaurian reptile Macrocnemus fuyuanensis Li et al., 2007, from the middle/upper Triassic of Yunnan, China. Journal of Vertebrate Paleontology 31, 1230-1237.
Jiménez-Huidobro, P. & Caldwell, M. W. (2019). A new hypothesis of the phylogenetic relationships of the tylosaurinae (Squamata: Mosasauroidea). Frontiers in Earth Science 7, 1-15.
Joyce, W. G. (2000). The first complete skeleton of Solnhofia parsoni (Cryptodira, Eurysternidae) from the upper Jurassic of Germany and its taxonomic implications. Journal of Paleontology 74, 684-700.
June, P. A. R., Dunson, W. A. & Dunson, M. K. (1973). Convergent evolution of sublingual salt glands in the marine file snake and the true sea snakes. Journal of Comparative Physiology 86, 193-208.
Karns, D. R., Voris, H. K. & Goodwin, T. G. (2002). Ecology of oriental-Australian rear-fanged water snakes (Colubridae: Homalopsinae) in the Pasir Ris Park mangrove Forest, Singapore. Raffles Bulletin of Zoology 50, 487-498.
Kaviar, S., Shockey, J. & Sundberg, P. (2012). Observations on the endemic pygmy three-toed sloth, Bradypus pygmaeus of Isla escudo de Veraguas, Panama. PLoS One 7, e49854.
Kelley, N. P. & Pyenson, N. D. (2015). Evolutionary innovation and ecology in marine tetrapods from the Triassic to the Anthropocene. Science 348, 3716-3717.
Kenyon, K. W. (1969). The Sea Otter in the Easter Pacific Ocean. Bureau of Sprot Fisheries and Wildlife, Washington, DC.
Kern, J. A. (1964). Observations of the habits of the proboscis monkey, Nasalis larvatus (Wrumb), made in Burnei Bay aerea, Borneo. Zoologica: Scientific Contributions of the New York Zoological Society 49, 183-192.
Ketchum, H. F. & Smith, A. S. (2010). The anatomy and taxonomy of Macroplata tenuiceps (Sauropterygia, Plesiosauria) from the Hettangian (lower Jurassic) of Warwickshire, United Kingdom. Journal of Vertebrate Paleontology 30, 1069-1081.
Kidera, N., Mori, A. & Tu, M. C. (2013). Comparison of freshwater discrimination ability in three species of sea kraits (Laticauda semifasciata, L. laticaudata and L. colubrina). Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology 199, 191-195.
King, D. & Green, B. (1993). Family Varanidae. In Fauna of Australia. Volume 2A. Amphibia & Reptilia (eds C. G. Glasby, G. L. B. Ross and P. L. Beesley), pp. 1-19. AGPS, Canberra.
Kohlsdorf, T., Garland, T. & Navas, C. A. (2001). Limb and tail lengths in relation to substrate usage in Tropidurus lizards. Journal of Morphology 248, 151-164.
Koleva, V., Kornilev, Y., Telenchev, I., Lukanov, S., Hristova, B. & Natchev, N. (2017). Salt tolerance's toll: prolonged exposure to saline water inflicts damage to the blood cells of dice snakes (Natrix tessellata). Web Ecology 17, 1-7.
Kruuk, H. & Moorhouse, A. (1990). Seasonal and spatial differences in food selection by otters Lutra lutra in Shetland. Journal of Zoology 221, 621-637.
Kumar, S., Stecher, G., Suleski, M. & Hedges, S. B. (2017). TimeTree: a resource for timelines, timetrees, and divergence times. Molecular Biology and Evolution 34, 1812-1819.
Lauprasert, K. & Thirakhupt, K. (2001). Species diversity, distribution and proposed status of monitor lizards (family Varanidae) in southern Thailand. The Natural History Journal of Chualongkorn University 1, 39-46.
Leca, J. B., Gunst, N., Watanabe, K. & Huffman, M. A. (2007). A new case of fish-eating in Japanese macaques: implications for social constraints on the diffusion of feeding innovation. American Journal of Primatology 69, 821-828.
Lee, M. S. Y. & Caldwell, M. W. (2000). Adriosaurus and the affinities of mosasaurs, dolichosaurs, and snakes. Journal of Paleontology 74, 915-937.
Lefèvre, U., Cau, A., Cincotta, A., Hu, D., Chinsamy, A., Escuillié, F. & Godefroit, P. (2017). A new Jurassic theropod from China documents a transitional step in the macrostructure of feathers. Die Naturwissenschaften 104, 74.
Li, C., Fraser, N. C., Rieppe, O., Zhao, L. J. & Wang, L. T. (2017). A new diapsid from the middle Triassic of southern China. Journal of Paleontology 91, 1306-1312.
Li, C., Fraser, N. C., Rieppel, O. & Wu, X.-C. C. (2018). A Triassic stem turtle with an edentulous beak. Nature 560, 476-479.
Li, C., Jiang, D.-Y. Y., Cheng, L., Wu, X.-C. C. & Rieppel, O. (2014). A new species of Largocephalosaurus (Diapsida: Saurosphargidae), with implications for the morphological diversity and phylogeny of the group. Geological Magazine 151, 100-120.
Li, C., Rieppel, O., Wu, X. C., Zhao, L. J. & Wang, L. T. (2011). A new Triassic marine reptile from Southwestern China. Journal of Vertebrate Paleontology 31, 303-312.
Li, C., Wu, X. C., Cheng, Y. N., Sato, T. & Wang, L. (2006). An unusual archosaurian from the marine Triassic of China. Naturwissenschaften 93, 200-206.
Li, C., Wu, X. C., Rieppel, O., Wang, L. T. & Zhao, L. J. (2008). An ancestral turtle from the late Triassic of southwestern China. Nature 456, 497-501.
Li, C., Wu, X. C., Zhao, L. J., Sato, T. & Wang, L. T. (2012). A new archosaur (Diapsida, Archosauriformes) from the marine Triassic of China. Journal of Vertebrate Paleontology 32, 1064-1081.
Li, Z.-G., Jiang, D.-Y., Rieppel, O., Motani, R., Tintori, A., Sun, Z.-Y. & Ji, C. (2016). A new species of Xinpusaurus (Reptilia, Thalattosauria) from the Ladinian (middle Triassic) of Xingyi, Guizhou, southwestern China. Journal of Vertebrate Paleontology 36, e1218340.
Lillywhite, H. B., Babonis, L. S., Sheehy, C. M. & Tu, M. C. (2008). Sea snakes (Laticauda spp.) require fresh drinking water: implication for the distribution and persistence of populations. Physiological and Biochemical Zoology 81, 785-796.
Lillywhite, H. B., Brischoux, F., Sheehy, C. M. & Pfaller, J. B. (2012). Dehydration and drinking responses in a pelagic sea snake. Integrative and Comparative Biology 52, 227-234.
Lillywhite, H. B. & Ellis, T. M. (1994). Ecophysiological aspects of the coastal-estuarine distribution of acrochordid snakes. Estuaries 17, 53-61.
Lillywhite, H. B., Heatwole, H. & Sheehy, C. M. (2014). Dehydration and drinking behavior of the marine file snake Acrochordus granulatus. Physiological and Biochemical Zoology 87, 46-55.
Lillywhite, H. B., Heatwole, H. & Sheehy, C. M. (2015). Dehydration and drinking behavior in true sea snakes (Elapidae: Hydrophiinae: Hydrophiini). Journal of Zoology 296, 261-269.
Limpus, C. J. (1993). Family Dermochelyidae. In Fauna of Australia. Vol. 2A: Amphibia and Reptilia (eds C. G. Glasby, G. J. B. Ross and P. L. Beesley), pp. 1-7. AGPS, Canberra.
Limpus, C. J. & Miller, J. D. (1993). Family Cheloniidae. In Fauna of Australia Vol. 2A: Amphibia and Reptilia (eds C. G. Glasby, G. J. B. Ross and P. L. Beesley), pp. 1-16. AGPS, Canberra.
Lin, W., Jiang, D., Rieppel, O., Motani, R., Tintori, A., Sun, Z. & Zhou, M. (2021). Panzhousaurus rotundirostris Jiang et al., 2019 (Diapsida: Sauropterygia) and the recovery of the monophyly of Pachypleurosauridae. Journal of Vertebrate Paleontology 41, e1901730.
Lin, W.-B., Jiang, D.-Y., Rieppel, O., Motani, R., Ji, C., Tintori, A., Sun, Z.-Y. & Zhou, M. (2017). A new specimen of Lariosaurus xingyiensis (Reptilia, Sauropterygia) from the Ladinian (middle Triassic) Zhuganpo member, Falang formation, Guizhou, China. Journal of Vertebrate Paleontology 37, e1278703.
Liu, J., Organ, C. L., Benton, M. J., Brandley, M. C. & Aitchison, J. C. (2017). Live birth in an archosauromorph reptile. Nature Communications 8, 1-8.
Liu, J. & Rieppel, O. C. (2005). Restudy of Anshunsaurus huangguoshuensis (Reptilia: Thalattosauria) from the middle Triassic of Guizhou, China. American Museum Novitates 3488, 1-34.
Liu, J., Rieppel, O., Jiang, D.-Y., Aitchison, J. C., Motani, R., Zhang, Q. Y., Zhou, C.-Y. & Sun, Y.-Y. (2011). A new pachypleurosaur (Reptilia: Sauropterygia) from the lower middle Triassic of southwestern China and the phylogenetic relationships of Chinese pachypleurosaurs. Journal of Vertebrate Paleontology 31, 292-302.
Liu, J., Zhao, L.-J. J., Li, C. & He, T. (2013). Osteology of Concavispina biseridens (Reptilia, Thalattosauria) from the Xiaowa formation (Carnian), Guanling, Guizhou, China. Journal of Paleontology 87, 341-350.
Loughlin, T. R. & Gelatt, T. S. (2018). Steller sea lion. In Encyclopedia of Marine Mammals, 3rd Edition (eds B. Würsig, J. G. M. Thewissen and K. M. Kovacs), pp. 931-935. Elsevier, Burlington.
Ma, L. T., Jiang, D.-Y. Y., Rieppel, O., Motani, R. & Tintori, A. (2015). A new pistosauroid (Reptilia, Sauropterygia). From the late Ladinian Xingyi marine reptile level, southwestern China. Journal of Vertebrate Paleontology 35, 37-41.
Madzia, D. & Cau, A. (2020). Estimating the evolutionary rates in mosasauroids and plesiosaurs: discussion of niche occupation in late cretaceous seas. PeerJ 8, e8941.
Makádi, L., Caldwell, M. W. & Osi, A. (2012). The first freshwater mosasauroid (upper cretaceous, Hungary) and a new clade of basal mosasauroids. PLoS One 7, e51781.
Malaivijitnond, S., Lekprayoon, C., Tandavanittj, N., Panha, S., Cheewatham, C. & Hamada, Y. (2007). Stone tool usage by Thai long-tailed macaques (Macaca fascicularis). American Journal of Primatology 69, 227-233.
Malla, G. (2016). Ecology and conservation of fishing cat in Godavari mangroves of Andhra Pradesh. In Proceedings of the First International Fishing Cat Conservation Symposium (eds A. Appel and J. W. Duckworth), pp. 48-50. Bad Marienberg, Germany, and Saltford, Bristol, United Kingdom: Fishing Cat Working Group.
Mangel, J. C., Whitty, T., Medina-Vogel, G., Alfaro-Shigueto, J., Caceres, C., Godley, B. J., Cáceres, C., Godley, B. J., Caceres, C. & Godley, B. J. (2011). Latitudinal variation in diet and patterns of human interaction in the marine otter. Marine Mammal Science 27, 14-25.
Marsh, H. (2009). Dugong dugong dugon. In Encyclopedia of Marine Mammals, 2nd Edition (eds W. F. Perrin, B. Würsig and J. G. M. Thewissen), pp. 332-335. Elsevier, Burlington.
Marsh, H., Heinsohn, G. E. & Marsh, L. M. (1984). Breeding cycle, life history and population dynamics of the dugong, Dugong dugon (Sirenia: Dugongidae). Australian Journal of Zoology 32, 767.
Martill, D. M., Tischlinger, H. & Longrich, N. R. (2015). A four-legged snake from the early cretaceous of Gondwana. Science 349, 416-419.
Matsui, K. & Tsuihiji, T. (2019). The phylogeny of desmostylians revisited: proposal of new clades based on robust phylogenetic hypotheses. PeerJ 2019, 1-17.
Mazouchova, N., Umbanhowar, P. B. & Goldman, D. I. (2013). Flipper-driven terrestrial locomotion of a sea turtle-inspired robot. Bioinspiration & Biomimetics 8, 026007.
Mazzotti, F. J. & Dunson, W. A. (1984). Adaptations of Crocodylus acutus and Alligator for life in saline water. Comparative Biochemistry and Physiology A-Physiology 79, 641-646.
Mccartney, J. A., Roberts, E. M., Tapanila, L. & O'Leary, M. A. (2018). Large palaeophiid and nigerophiid snakes from Paleogene trans-Saharan seaway deposits of Mali. Acta Palaeontologica Polonica 63, 207-220.
McGowan, C. & Motani, R. (2003). Ichthyopterygia. In Handbook of Paleoherpetology p. Verlag Dr. Friedrich Pfeil, München.
Moon, B. C. (2017). A new phylogeny of ichthyosaurs (Reptilia: Diapsida). Journal of Systematic Palaeontology 17, 129-155.
Moore, P. G. (2002). Mammals in intertidal and maritime ecosystems: interactions, impatcts and implications. In Oceanography and Marine Biology. An Annual Review (eds R. N. Gibson, M. Barnes and R. J. A. Atkinson), pp. 491-608. Taylor & Francis, London.
Mori, M. (1958). The skeleton and musculature of Zalophus. Okajimas Folia Anatomico Japonica 31, 203-284.
Motani, R. (1999). On the evolution and homologies of ichthyopterygian forefins. Journal of Vertebrate Paleontology 19, 28-41.
Motani, R. (2009). The evolution of marine reptiles. Evolution: Education and Outreach 2, 224-235.
Motani, R., Chen, X.-H., Jiang, D.-Y., Cheng, L., Tintori, A. & Rieppel, O. (2015a). Lunge feeding in early marine reptiles and fast evolution of marine tetrapod feeding guilds. Scientific Reports 5, 8900.
Motani, R., Huang, J., Jiang, D. Y., Tintori, A., Rieppel, O., You, H., Hu, Y. C. & Zhang, R. (2018). Separating sexual dimorphism from other morphological variation in a specimen complex of fossil marine reptiles (Reptilia, Ichthyosauriformes, Chaohusaurus). Scientific Reports 8, 1-14.
Motani, R., Jiang, D.-Y., Rieppel, O. C., Xue, Y.-F. & Tintori, A. (2015b). Adult sex ratio, sexual dimorphism and sexual selection in a Mesozoic reptile. Proceedings of the Royal Society B-Biological Sciences 282, 20151658.
Motani, R., Jiang, D.-Y., Tintori, A., Ji, C. & Huang, J.-D. (2017). Pre- versus post-mass extinction divergence of Mesozoic marine reptiles dictated by time-scale dependence of evolutionary rates. Proceedings of the Royal Society B-Biological Sciences 284, 20170241.
Motani, R., Jiang, D.-Y., Tintori, A., Rieppel, O. & Chen, G.-B. (2014). Terrestrial origin of viviparity in Mesozoic marine reptiles indicated by early Triassic embryonic fossils. PLoS One 9, e88640.
Motani, R., Jiang, D.-Y., Tintori, A., Rieppel, O., Chen, G.-B., You, H. H.-L., Rieppel, O. C. & Motani, R. (2015c). Status of Chaohusaurus chaoxianensis (Chen, 1985). Journal of Vertebrate Paleontology 35, e892011.
Motani, R., Jiang, D.-Y. Y., Chen, G.-B. B., Tintori, A., Rieppel, O., Ji, C. & Huang, J.-D. D. (2015d). A basal ichthyosauriform with a short snout from the lower Triassic of China. Nature 517, 485-488.
Motani, R., Minoura, N. & Ando, T. (1998). Ichthyosaurian relationships illuminated by new primitive skeletons from Japan. Nature 393, 255-257.
Motani, R. & You, H.-L. (1998). The forefin of Chensaurus chaoxianensis (Ichthyosauria) shows delayed mesopodial ossification. Journal of Paleontology 72, 133-136.
Müller, J. (2005). The anatomy of Askeptosaurus italicus from the middle Triassic of Monte san Giorgio and the interrelationships of thalattosaurs (Reptilia, Diapsida). Canadian Journal of Earth Sciences 42, 1347-1367.
Murphy, J. C. (2011). The nomenclature and systematics of some Australasian homalopsid snakes (Squamata: Serpentes: Homalopsidae). Raffles Bulletin of Zoology 59, 229-236.
Murphy, J. C. (2012). Marine invasions by non-sea snakes, with thoughts on terrestrial-aquatic- marine transitions. Integrative and Comparative Biology 52, 217-226.
Murphy, J. C., Voris, H. K. & Karns, D. R. (2012). The dog-faced water snakes, a revision of the genus Cerberus Cuvier (Squamata, Serpentes, Homalopsidae), with the description of a new species. Zootaxa 3484, 1-34.
Neenan, J. M., Li, C., Rieppel, O. & Scheyer, T. M. (2015). The cranial anatomy of Chinese placodonts and the phylogeny of Placodontia (Diapsida: Sauropterygia). Zoological Journal of the Linnean Society 175, 415-428.
Nesbitt, S. J. (2011). The early evolution of archosaurs: relationships and the origin of major clades. Bulletin of the American Museum of Natural History 352, 1-292.
Nicholls, E. L. (1999). A reexamination of Thalattosaurus and Nectosaurus and the relationships of the Thalattosauria (Reptilia: Diapsida). PaleoBios 19, 1-29.
Nicholls, E. L., Brinkman, D. B. & Wu, X.-C. C. (1998). A new archosaur from the upper Triassic Pardonet formation of British Columbia. Canadian Journal of Earth Sciences 35, 1134-1142.
Nicholls, E. L., Tokaryk, T. T. & Hills, L. V. (1990). Cretaceous marine turtles from the Western interior seaway of Canada. Canadian Journal of Earth Sciences 27, 1288-1298.
Nicolson, S. W. & Lutz, P. L. (1989). Salt gland function in the Green Sea turtle Chelonia mydas. Journal of Experimental Biology 144, 171-184.
Nosotti, S. (2007). Tanystropheus longobardicus (Reptilia, Protorosauria): re-interpretations of the anatomy based on new specimens from the middle Triassic of Besano (Lombardy, northern Italy). Memorie della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano 35, 1-88.
O'Keefe, F. R. (2002). The evolution of plesiosaur and pliosaur morphotypes in the Plesiosauria (Reptilia: Sauropterygia). Paleobiology 28, 101-112.
O'Keefe, F. R., Rieppel, O. & Sander, P. M. (1999). Shape disassociation and inferred heterochrony in a clade of pachypleurosaurs (Reptilia, Sauropterygia). Paleobiology 25, 504-517.
O'Shea, M. (2007). Boas and Pythons of the World. New Holland, London.
Ortiz, R. M. (2001). Osmoregulation in marine mammals. Journal of Experimental Biology 204, 1831-1844.
Pagano, A. M., Durner, G. M., Amstrup, S. C., Simac, K. S. & York, G. S. (2012). Long-distance swimming by polar bears (Ursus maritimus) of the southern Beaufort Sea during years of extensive open water. Canadian Journal of Zoology-Revue Canadienne de Zoologie 90, 663-676.
Paparella, I., Palci, A., Nicosia, U. & Caldwell, M. W. (2018). A new fossil marine lizard with soft tissues from the late cretaceous of southern Italy. Royal Society Open Science 5, 1-14.
Parmley, D. & Reed, H. W. (2003). Size and age class estimates of north American Eocene palaeophid snakes. Georgia Journal of Science 61, 220-232.
Peralta-Prato, J. & Solórzano, A. (2019). How many species of the aquatic sloth Thalassocnus (Xenarthra: Megatheriidae) were in Chile?: new evidences from the bahía inglesa formation, with a reappraisal of their biochronological affinities. Andean Geology 46, 693-702.
Perini, F. A., Nascimento, E. R. & Cozzuol, M. A. (2019). A new species of Trichechus Linnaeus, 1758 (Sirenia, Trichechidae), from the upper Pleistocene of southwestern Amazonia, and the evolution of Amazonian manatees. Journal of Vertebrate Paleontology 39, e1697882.
Piérard, J. (1971). Osteology and myology of the Weddell seal Leptonychotes weddelli (lesson, 1826). Antarctic Pinnipedia 18, 53-108.
Piérard, J. & Bisaillon, A. (1979). Osteology of the Ross seal Ommatophoca rossi gray, 1844. Antarctic Research Series 31, 1-24.
Platt, S. G., Thorbjarnarson, J. B., Rainwater, T. R. & Martin, D. R. (2013). Diet of the American crocodile (Crocodylus acutus). In marine environments of coastal Belize. Journal of Herpetology 47, 1-10.
Pregill, G. K. & Steadman, D. W. (2004). South Pacific iguanas: human impacts and a new species. Journal of Herpetology 38, 15-21.
Pyenson, N. D., Kelley, N. P. & Parham, J. F. (2014). Marine tetrapod macroevolution: physical and biological drivers on 250 Ma of invasions and evolution in ocean ecosystems. Palaeogeography Palaeoclimatology Palaeoecology 400, 1-8.
Rage, J.-C., Bajpai, S., Thewissen, J. G. M. & Tiwari, B. N. (2003). Early Eocene snakes from Kutch, Western India, with a review of the Palaeophiidae. Geodiversitas 25, 695-716.
Rasmussen, A. R., Murphy, J. C., Ompi, M., Gibbons, J. W. & Uetz, P. (2011). Marine Reptiles. PLoS One 6, 267-280.
Regis, K. W. & Meik, J. M. (2017). Allometry of sexual size dimorphism in turtles: a comparison of mass and length data. PeerJ 5, e2914.
Renesto, S. & Paganonp, A. (1998). A phytosaur skull from the norian (late Triassic) of Lombardy (northern Italy). Rivista Italiana di Paleontologia e Stratigrafia 104, 115-122.
Reynoso, V.-H. H. (2000). An unusual aquatic sphenodontian (Reptilia: Diapsida). From the Tlayua formation (Albian), Central Mexico. Journal of Paleontology 74, 133-148.
Rieppel, O. (1987). Clarazia and Hescheleria, a re-investigation of two problematical reptiles from the middle Triassic of Monte san Giorgio Switzerland. Palaeontographica Abteilung A Palaeozoologie-Stratigraphie 195, 101-129.
Rieppel, O. (1989). A new pachypleurosaur (Reptilia: Sauropterygia) from the middle Triassic of Monte san Giorgio, Switzerland. Philosophical Transactions - Royal Society of London, Series B 323, 1-73.
Rieppel, O. C. (1994). Osteology of Simosaurus gaillardoti and the relationships of stem-group Sauropterygia. Fieldiana: Geology 28, 1-85.
Rieppel, O. (1995). The genus Placodus: systematics, morphology, paleobiogeography, and paleobiology. Fieldiana Geology New Series 31, 1-44.
Rieppel, O. (2000). Sauropterygia I. Handbuch für Paläoherpetologie 12A. Verlag Dr. Friedrich Pfeil, München.
Rieppel, O., Jiang, D.-Y. Y., Fraser, N. C. C., Hao, W.-C. C., Motani, R., Sun, Y.-L. L. & Sun, Z.-Y. Y. (2010). Tanystropheus cf. T. longobardicus from the early late Triassic of Guizhou Province, southwestern China. Journal of Vertebrate Paleontology 30, 1082-1089.
Rieppel, O., Li, C. & Fraser, N. C. (2008). The skeletal anatomy of the triassic protorosaur Dinocephalosaurus orientalis Li, from the middle Triassic of Guizhou Province, southern China. Journal of Vertebrate Paleontology 28, 95-110.
Rieppel, O., Li, J. L., Jun, L., Li, J.-L., Jun, L. & Liu, J. (2003). Lariosaurus xingyiensis (Reptilia: Sauropterygia) from the Triassic of China. Canadian Journal of Earth Sciences 40, 621-634.
Rivera, A. R. V., Wyneken, J. & Blob, R. W. (2011). Forelimb kinematics and motor patterns of swimming loggerhead sea turtles (Caretta caretta): are motor patterns conserved in the evolution of new locomotor strategies? Journal of Experimental Biology 214, 3314-3323.
Roberts, T. J. (1977). Felis viverrina. In The Mammals of Pakistan, pp. 151-153. Ernest Benn Limited, London.
Rode, K. & Stirling, I. (2018). Polar Bear. In Encyclopedia of Marine Mammals, 3rd Edition (eds B. Würsig, J. G. M. Thewissen and K. M. Kovacs), pp. 743-746. Elsevier, Burlington.
Romero, A. (2012). When whales became mammals: the scientific journey of cetaceans from fish to mammals in the history of science. In New Approaches to the Study of Marine Mammals (eds A. Romero and E. O. Keith), pp. 3-30. Online: Intec.
Russell, D. A. (1967). Systematics and morphology of American mosasaurs. Bulletin of the Peabody Museum of Natural History 23, 1-252.
Rybczynski, N., Dawson, M. R. & Tedford, R. H. (2009). A semi-aquatic Arctic mammalian carnivore from the Miocene epoch and origin of Pinnipedia. Nature 458, 1021-1024.
Sander, P. M. (1989). The pachypleurosaurids (Reptilia, Nothosauria). From the middle Triassic of Monte-san-Giorgio (Switzerland). With the description of a new species. Philosophical Transactions of the Royal Society of London Series B-Biological Sciences 325, 563-666.
Sander, P. M., Rieppel, O. C. & Bucher, H. (2013). A new Pistosaurid (Reptilia : Sauropterygia) from the middle Triassic of Nevada and its implications for the origin of the plesiosaurs. The Society of Vertebrate Paleontology 17, 526-533.
Sato, T. (2003). Terminonatator ponteixensis, a new easmosaur (Reptilia ; Sauropterygia) from the Upper Cretaceous of Saskatchewan. Journal of Vertebrate Paleontology 23, 89-103.
Sato, T., Cheng, Y.-N. Y., Wu, X.-C. X. & Li, C. (2010). Osteology of Yunguisaurus Cheng et al., 2006 (Reptilia; Sauropterygia), a Triassic pistosauroid from China. Paleontological Research 14, 179-195.
Sato, T., Cheng, Y. N., Wu, X. C. & Shan, H. Y. (2014a). Diandongosaurus acutidentatus Shang, Wu & Li, 2011 (Diapsida: Sauropterygia) and the relationships of Chinese eosauropterygians. Geological Magazine 151, 121-133.
Sato, T., Hasegawa, Y. & Manabe, M. (2006). A new elasmosaurid plesiosaur from the upper cretaceous of Fukushima, Japan. Palaeontology 49, 467-484.
Sato, T., Zhao, L. J., Wu, X. C. & Li, C. (2014b). A new specimen of the Triassic pistosauroid Yunguisaurus, with implications for the origin of Plesiosauria (Reptilia, Sauropterygia). Palaeontology 57, 55-76.
Schoch, R. R. (2006). A complete trematosaurid amphibian from the middle Triassic of Germany. Journal of Vertebrate Paleontology 26, 29-43.
Selvam, V. (2003). Environmental classification of mangrove wetlands of India. Current Science 84, 757-765.
Shang, Q.-H. & Li, C. (2015). A new small-sized eosauropterygian (Diapsida: Sauropterygia) from the middle Triassic of Luoping, Yunnan, southwestern China. Vertebrata PalAsiatica 53, 265-280.
Shetty, S. & Shine, R. (2002). Activity patterns of yellow-lipped sea kraits (Laticauda colubrina). On a Fijian Island. Copeia 2002, 77-85.
Shine, R., Harlow, P., Keogh, T. S. & Boeadi (1995). Biology and commercial utilization of acrochordid snakes, with special reference to Karung (Acrochordus javanicus). Journal of Herpetology 29, 352-360.
Shine, R. & Shetty, S. (2001). Moving in two worlds: aquatic and terrestrial locomotion in sea snakes (Laticauda colubrina, Laticaudidae). Journal of Evolutionary Biology 14, 338-346.
Shoemaker, V. H. & Nagy, K. A. (1984). Osmoregulation in the Galápagos marine Iguana, Amblyrhynchus cristatus. Physiological Zoology 57, 291-300.
Smith, M. A. (1943). Reptilia and Amphibia. Vol. III Serpentes. In The Fauna of British India, Ceylon, and Burma, Including the Whole of the Indo-Chinese Sub-Region. Taylor and Fracis, London.
Smith, A. S. & Vincent, P. (2010). A new genus of pliosaur (Reptilia: Sauropterygia) from the lower Jurassic of Holzmaden, Germany. Palaeontology 53, 1049-1063.
Son, V. D. (2003). Diet of Macaca fascicularis in a mangrove forest, Vietnam. Laboratory Primate Newsletter (Brown University) 42, 1-5.
Stewart, A. M. E., Gordon, C. H., Wich, S. A., Schroor, P. & Meijaard, E. (2008). Fishing in Macaca fascicularis: a rarely observed innovative behavior. International Journal of Primatology 29, 543-548.
Stocker, M. R., Zhao, L. J., Nesbitt, S. J., Wu, X. C. & Li, C. (2017). A short-snouted, middle Triassic phytosaur and its implications for the morphological evolution and biogeography of Phytosauria. Scientific Reports 7, 1-8.
Taplin, L. E. (1988). Osmoregulation in crocodilians. Biological Reviews 63, 333-377.
Taplin, L. E. & Grigg, G. C. (2006). Salt glands in the tongue of the estuarine crocodile Crocodylus porosus. Science 212, 1045-1047.
Taplin, L. E., Grigg, G. C., Beard, L. A. & Pulsford, T. (1999). Osmoregulatory mechanisms of the Australian freshwater crocodile, Crocodylus johnstoni, in freshwater and estuarine habitats. Journal of Comparative Physiology B-Biochemical Systemic and Environmental Physiology 169, 215-223.
Taplin, L. E., Grigg, G. C., Harlow, P., Ellis, T. M. & Dunson, W. A. (1982). Lingual salt glands in Crocodylus acutus and C. johnstoni and their absence from Alligator mississipiensis and Caiman crocodilus. Journal of Comparative Physiology B 149, 43-47.
Thewissen, A. J. G. M. & Bajpai, S. (2009). New skeletal material of Andrewsiphius and Kutchicetus, two Eocene cetaceans from India. Journal of Paleontology 83, 635-663.
Thewissen, J. G. M., Cohn, M. J., Stevens, L. S., Bajpai, S., Heyning, J. & Horton, W. E. (2006). Developmental basis for hind-limb loss in dolphins and origin of cetacean body plan. Proceedings of the National Academy of Sciences of the United States of America 103, 8414-8418.
Thewissen, J. G. M., Madar, S. I. & Hussain, S. T. (1996). Ambulocetus natans, an Eocene cetacean (Mammalia). From Pakistan. Courier Forschungsinstitut Senckenberg 191, 1-86.
Tintori, A. & Renesto, S. (1990). A new Lariosaurus from the Kalkschieferzone (uppermost Ladinian) of Valcetesio (Varese, N. Italy) found in the Calcare. Bollettino tlella Società Paleontologica ltaliana 29, 309-319.
Tremul, P. R. (2017). Field observations provide an insight into the ecology of the rusty monitor (Varanus semiremex) in South-Eastern Queensland, Australia. Memoirs of the Queensland Museum|Nature 60, 77-89.
Uhen, M. D. (2004). Form, function, and anatomy of Dorudon atrox (Mammalia, Cetacea): an archaeocete from the middle to late Eocene of Egypt. Papers on Paleontology 34, 1-238.
Valqui, J. (2012). The marine otter Lontra felina (Molina, 1782): a review of its present status and implications for future conservation. Mammalian Biology 77, 75-83.
van Houtan, K. S., Halley, J. M. & Marks, W. (2015). Terrestrial basking sea turtles are responding to spatio-temporal sea surface temperature patterns. Biology Letters 11, 20140744.
Vermeij, G. J. & Motani, R. (2018). Land to sea transitions in vertebrates: the dynamics of colonization. Paleobiology 44, 237-250.
Vincent, P. & Smith, A. S. (2009). A redescription of plesiosaurus propinquus Tate & Blake, 1876 (Reptilia, Plesiosauria), from the lower Jurassic (Toarcian) of Yorkshire, England. Proceedings of the Yorkshire Geological Society 57, 133-142.
Voirin, B. (2015). Biology and conservation of the pygmy sloth, Bradypus pygmaeus. Journal of Mammalogy 96, 703-707.
Voris, H. K. (2015). Marine snake diversity in the mouth of the Muar River, Malaysia. Tropical Natural History 15, 1-21.
Voris, H. K. & Murphy, J. C. (2002). The prey and predators of homalopsine snakes. Journal of Natural History 36, 1621-1632.
Vyas, R. V., Murphy, J. C. & Voris, H. K. (2013). The dog-faced water Snake (Cerberus rynchops) and Gerard's mud Snake (Gerarda prevostiana) at the western edge of their distribution. Herpetological Review 44, 34-36.
Watanabe, K. (1989). Fish - a new addition to the diet of Japanese macaques on Koshima Island. Folia Primatologica 52, 124-131.
Welles, S. P. (1952). A review of the north American cretaceous elasmosaurs. University of California Publications in Geological Sciences 29, 47-144.
Westgate, J. W. (2001). Paleoecology and biostratigraphy of marginal marine Gulf Coast Eocene vertebrate localities. In Eocene Biodiversity. Unusual Occurrences and Rarely Sampled Habitats (ed. G. F. Gunnell), pp. 263-297. Springer Science, New York.
Wieland, G. R. (1896). Archelon ischyros: a new gigantic cryptodire testudinate from the Fort Pierre cretaceous of South Dakota. American Journal of Science 2, 399-412.
Wikelski, M. & Wrege, P. H. (2009). Niche expansion, body size, and survival in Galápagos marine iguanas. Ecology 124, 107-115.
Willey, J. S. (2004). The tale of the tail: limb function and locomotor mechanics in Alligator mississippiensis. Journal of Experimental Biology 207, 553-563.
Williston, S. W. (1898). Mosasaurs. The University Geological Survey of Kansas 5, 83-347.
Wu, X. C., Cheng, Y. N., Li, C., Zhao, L. J. & Sato, T. (2011). New information on Wumengosaurus delicatomandibularis Jiang et al., 2008 (Diapsida: Sauropterygia), with a revision of the osteology and phylogeny of the taxon. Journal of Vertebrate Paleontology 31, 70-83.
Wu, X.-C., Cheng, Y.-N., Sato, T. & Shan, H.-Y. (2009). Miodentosaurus brevis Cheng et al., 2007 (Diapsida: Thalattosauria): its postcranial skeleton and phylogenetic relationships. Vertebrata PalAsiatica 47, 1-20.
Wyneken, J. (2001). The anatomy of sea turtles. U.S. Department of Commerce NOAA technical memorandum NMFS-SEFSC-470. NOAA Technical Memorandum NMFS-SEFSC 470, 1-172.
Xue, Y.-F., Jiang, D.-Y., Motani, R., Rieppel, O., Sun, Y.-L., Sun, Z.-Y., Ji, C. & Yang, P.-F. (2015). New information on sexual dimorphism and allometric growth in Keichousaurus hui, a pachypleurosaur from the middle triassic of Guizhou, South China. Acta Palaeontologica Polonica 60, 681-687.
Young, C.-C. (1965). On the new nothosaurs from Hupeh and Kweichou, China. Vertebrata Palasiatica 9, 315-356.
Young, M. T., de Andrade, M. B., Brusatte, S. L., Sakamoto, M. & Liston, J. (2013). The oldest known metriorhynchid super-predator: a new genus and species from the middle Jurassic of England, with implications for serration and mandibular evolution in predacious clades. Journal of Systematic Palaeontology 11, 475-513.
Young, M. T., Sachs, S., Abel, P., Foffa, D., Herrera, Y. & Kitson, J. J. N. (2020). Convergent evolution and possible constraint in the posterodorsal retraction of the external nares in pelagic crocodylomorphs. Zoological Journal of the Linnean Society 189, 494-520.
Young, V. K. H. (2017). Secondary Land to Water Transitions: Turtles as Models for Understanding Morphological Evolution. Clemson, South Carolina: Clemson University. https://tigerprints.clemson.edu/all_dissertations/1953/.
Zaaf, A. & van Damme, R. (2001). Limb proportions in climbing and ground-dwelling geckos (Lepidosauria, Gekkonidae): a phylogenetically informed analysis. Zoomorphology 121, 45-53.
Zalmout, I. & Gingerich, P. D. (2012). Late Eocene Sea cows (Mammalia, Sirenia) from Wadi Al Hitan in the Western Desert of Fayum, Egypt. Papers on Paleontology 37, 1-153.
Zhao, L.-J., Li, C., Liu, J. & He, T. (2008). A new armored placodont from the middle Triassic of Yunnan Province, southwestern China. Vertebrata Palasiatica 46, 171-177.