Maternal care in Mid-Cretaceous lagonomegopid spiders.
Cretaceous
Lagonomegopidae
behaviour
egg sac
maternal care
spiderling
Journal
Proceedings. Biological sciences
ISSN: 1471-2954
Titre abrégé: Proc Biol Sci
Pays: England
ID NLM: 101245157
Informations de publication
Date de publication:
08 09 2021
08 09 2021
Historique:
entrez:
15
9
2021
pubmed:
16
9
2021
medline:
5
11
2021
Statut:
ppublish
Résumé
Maternal care benefits the survival and fitness of offspring, often at a cost to the mother's future reproduction, and has evolved repeatedly throughout the animal kingdom. In extant spider species, this behaviour is very common and has different levels and diverse forms. However, evidence of maternal care in fossil spiders is quite rare. In this study, we describe four Mid-Cretaceous (approx. 99 Ma) amber specimens from northern Myanmar with an adult female, part of an egg sac and some spiderlings of the extinct family Lagonomegopidae preserved, which suggest that adult lagonomegopid females probably built and then guarded egg sacs in their retreats or nests, and the hatched spiderlings may have stayed together with their mother for some time. The new fossils represent early evidence of maternal care in fossil spiders, and enhance our understanding of the evolution of this behaviour.
Identifiants
pubmed: 34521253
doi: 10.1098/rspb.2021.1279
pmc: PMC8441120
doi:
Substances chimiques
Amber
0
Banques de données
figshare
['10.6084/m9.figshare.c.5604578']
Dryad
['10.5061/dryad.7m0cfxpv0']
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
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