noun
Sauropsida
Scientific term for the clade that includes reptiles, birds, and extinct dinosaurs. Used in biology and paleontology.
竜弓類には爬虫類と鳥類が含まれる。
Sauropsida includes reptiles and birds.
恐竜は竜弓類に分類される。
Dinosaurs are classified under Sauropsida.
鳥類 means birds; 竜弓類 is the parent clade containing both birds and reptiles.
From 竜弓 (りゅうきゅう, 'dragon bow') + 類 (るい, 'group'). The term is a calque of the scientific name Sauropsida, likely coined in Japanese biological taxonomy.