Question

Hadrosaurids were most successful and widespread during the _____________.

A. Late Cretaceous
B. Early Cretaceous
C. Late Jurassic
D. Middle Jurassic

Answer 1

Hadrosaurids thrived during the Late Cretaceous period, the last period of the Mesozoic era, which ended with the extinction of the dinosaurs.

Step-by-step explanation:

Hadrosaurids, commonly known as duck-billed dinosaurs, were most successful and widespread during the Late Cretaceous period. This time frame, which spans from 145 to 65 million years ago, was the last period of the Mesozoic era and witnessed dinosaurs reaching their peak in size and distribution.

Notably, the Late Cretaceous period also coincides with the continents moving closer to their present positions and the Earth experiencing a warm climate, even at the poles. This period concluded with the dramatic extinction of the dinosaurs, including the hadrosaurids.

Hadrosaurids thrived during the Late Cretaceous period, the last period of the Mesozoic era, which ended with the extinction of the dinosaurs.