I think they became extinct at the end of the Mesozoic era
the dinosaurs became extinct because the was kill of there family
B.CAnswer:Although the majority of dinosaurs died out about 70 million years ago, the present day birds are evolved from theropods and are direct descendants of the dinosaurs. In that manner dinosaurs have not become extinct.
Mesozoic era
Non avian dinosaurs became extinct 65.5 million years ago, at the end of the Cretaceous. However, birds are considered dinosaurs. Because birds still exist, dinosaurs are not completely extinct.
The first dinosaurs evolved in the Mesozoic. At the end of the Mesozoic, all non avian dinosaurs became extinct. Therefor, all non avian dinosaurs, and some avian dinosaurs (birds), lived in the Mesozoic.
Rex the Runt How Dinosaurs Became Extinct - 1994 is rated/received certificates of: Spain:T
no
Dinosaurs became extinct millions of years ago. Dinosaurs died off long before humans came into existence.
The last dinosaurs became extinct 65 million years ago.
The extinction of the dinosaurs did not occur during the Cenozoic era. Dinosaurs went extinct at the end of the Mesozoic era, which preceded the Cenozoic era.
The first dinosaurs evolved in the Mesozoic. At the end of the Mesozoic, all non avian dinosaurs became extinct. Therefor, all non avian dinosaurs, and some avian dinosaurs (birds), lived in the Mesozoic.
No. If you count birds as dinosaurs, they still exist. If you don't, dinosaurs became extinct at the end of the Cretaceous, not the beginning.