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Subclass archaeornithes
/sˈʌbklas ˈɑːkiːˌɔːnaɪðz/
/sˈʌbklæs ˈɑːɹkiːˌoːɹnaɪðz/
Subclass archaeornithes
01
primitive reptile-like fossil birds of the Jurassic or early Cretaceous
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primitive reptile-like fossil birds of the Jurassic or early Cretaceous