Amniote (Amniota)

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Amniota are named for the amniotic egg in which the embryo develops. It is comprised of a set of protective membranes that surround the embryo—the amnion, chorion, and allantois.

Most land dwelling vertebrates living today (mammals, turtles, Sphenodon, lizards, crocodylians and birds) are amniotes, with over 200,000 living species.


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  1. Amniota University of California Museum of Paleontology
  2. Amniota
(amniotes) Parent Taxa University of Michigan Museum of Zoology