Vocab Bloom Hub

protoavis

/ˌprəʊ.təʊˈeɪ.vɪs/

翻译: 指原鸟属,一种生存于三叠纪的原始鸟类样恐龙,具有类似鸟的颌、中空四肢和胸骨,但保留恐龙式的尾部和后肢。泛指原始鸟类或鸟形恐龙。

1 个条目

noun

/ˌprəʊ.təʊˈeɪ.vɪs/C2formalscientific
  • zh指原鸟属,一种生存于三叠纪的原始鸟类样恐龙,具有类似鸟的颌、中空四肢和胸骨,但保留恐龙式的尾部和后肢。泛指原始鸟类或鸟形恐龙。

A noun referring to a genus of extinct, primitive bird-like dinosaur from the Triassic period, characterized by a bird-like jaw, hollow limbs, and breastbone, but retaining a dinosaur-like tail and hind limbs.

  1. Primitive bird ancestorC2formalscientific

    An extinct genus of early bird-like dinosaur from the Triassic period, characterized by a bird-like jaw, hollow limbs, and a breastbone, but retaining a dinosaur-like tail and hind limbs.

    zh原始鸟类祖先

    • Protoavis is considered one of the earliest known avian ancestors.
    • The fossil of Protoavis shows a mix of bird and dinosaur features.
    • Paleontologists debate whether Protoavis was a true bird or a dinosaur.