amniota
  羊膜動物; 羊膜類
  Am·ni·o·ta /ˌæmnɪˈotə/ 名詞 複數
  Am·ni·o·ta n. pl.  Zool. That group of vertebrates which develops in its embryonic life the envelope called the amnion. It comprises the reptiles, the birds, and the mammals.
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  Amniota
       n : higher vertebrates (reptiles, birds and mammals) possessing
           an amnion during development