 Amniote

ID: amniote

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Ciro Santilli 36  Updated 2025-04-24  +Created 1970-01-01

Name origin: amnion, a pellicle that covers embryos of both eggs and also during pregnancy.

Includes:

sauropsida: reptiles and birds, which really are reptiles
mammals, or if you want to include a bunch of extinct non-reptile mammal ancestors, synapsids.

Does not include amphibians. If you include them, you have the tetrapods.

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