Overview

amniote


Show Summary Details

Quick Reference

Applied to a type of development, typical of higher vertebrates (reptiles, birds, and mammals), in which the amnion surrounds the embryo in a bag of (amniotic) fluid. The amnion is primitively associated with a shell, and is capable of gaseous exchange; its development thus enabled eggs to be laid on dry land for the first time in vertebrate evolution.

Subjects: Zoology and Animal Sciences.


Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.