He united reptiles and birds under the title of Sauropsida, and thought that birds had evolved from small carnivorous dinosaurs.
h iː WORD_BOUNDARY j uː n aɪ t ɪ d WORD_BOUNDARY ɹ ɛ p t aɪ l z WORD_BOUNDARY æ n d WORD_BOUNDARY b ɜː d z WORD_BOUNDARY ʌ n d ə ɹ WORD_BOUNDARY ð ə WORD_BOUNDARY t aɪ t ə l WORD_BOUNDARY ʌ v WORD_BOUNDARY s ɔ ɹ ə p s ɪ d ə WORD_BOUNDARY æ n d WORD_BOUNDARY θ ɔ t WORD_BOUNDARY ð æ t WORD_BOUNDARY b ɜː d z WORD_BOUNDARY h æ d WORD_BOUNDARY ɪ v ɑ l v d WORD_BOUNDARY f ɹ ʌ m WORD_BOUNDARY s m ɔ l WORD_BOUNDARY k ɑ ɹ n ɪ v ə ɹ ɹ ə s WORD_BOUNDARY d aɪ n ə s ɔ ɹ z WORD_BOUNDARY