分類:白堊紀出現的現存物種
Extant Cretaceous first appearances, the geologic time period between 100.5 and 66 million years ago. Biological taxa that first appeared during the Cretaceous Period, and have not yet gone extinct.
Extant Cretaceous first appearances, the geologic time period between 100.5 and 66 million years ago. Biological taxa that first appeared during the Cretaceous Period, and have not yet gone extinct.