Amniota [
'æmnɪot]
[医] 羊膜动物类
amniota[ noun ]
higher vertebrates (reptiles, birds and mammals) possessing an amnion during development
<noun.animal>
Amniota \Am`ni*o"ta\, n. pl. [NL. See {Amnion}.] (Zo["o]l.)
That group of vertebrates which develops in its embryonic
life the envelope called the amnion. It comprises the
reptiles, the birds, and the mammals.