Ciro Santilli @cirosantilli 36

 Incoming links: Amnion

Amniote  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.

 Read the full article