最終更新日：2024/07/30

(informal) Any of several extinct animals proposed as an evolutionary link between fossil reptiles and fossil birds; a proavian.

正解を見る

protobird

問題を編集する

元となった辞書の項目

protobird

noun

(informal) Any of several extinct animals proposed as an evolutionary link between fossil reptiles and fossil birds; a proavian.

The protobird is an extinct species of bird that lived during the Cretaceous period.

意味（1）

(informal) Any of several extinct animals proposed as an evolutionary link between fossil reptiles and fossil birds; a proavian.