What evidence is most consistent with dinosaurs becoming extinct at the end of the Cretaceous era?
A-Mammal fossils are rare in the Cretaceous, and numerous in the Paleogene.
B-No dinosaur fossils are found above the Cretaceous-Paleogene boundary.
C-The Cretaceous-Paleogene boundary layer contains few or no fossils.

Respuesta :

Answer:

Answer is B-No dinosaur fossils are found above the Cretaceous-Paleogene boundary.

Explanation:

Answer:

b

Explanation: