Oldest preserved umbilical scar reveals dinosaurs had ‘belly buttons’

BACKGROUND: In egg-laying amniotes, the developing embryo is tethered to a number of the extraembryonic membranes including the yolk sac and allantois that deliver oxygen and nutrients and remove metabolic waste products throughout embryonic development. Prior to, or soon after hatching, these membr...

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Detalles Bibliográficos
Autores principales: Bell, Phil R., Hendrickx, Christophe, Pittman, Michael, Kaye, Thomas G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2022
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9172161/
https://www.ncbi.nlm.nih.gov/pubmed/35672741
http://dx.doi.org/10.1186/s12915-022-01329-9

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9172161/
https://www.ncbi.nlm.nih.gov/pubmed/35672741
http://dx.doi.org/10.1186/s12915-022-01329-9

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