Question

Stegosaurs reached the zenith of their diversity during the ___________.

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

Answer 1

Stegosaurs reached their peak diversity in the Late Jurassic, which is part of the Mesozoic Era known as the Age of Reptiles.

Step-by-step explanation:

Stegosaurs reached the zenith of their diversity during the Late Jurassic period. During the Jurassic, which spanned 56 million years from the end of the Triassic Period 201.3 million years ago (Ma) to the beginning of the Cretaceous Period 145 Ma, dinosaurs flourished and filled most terrestrial niches. This period was part of the Mesozoic Era, often referred to as the Age of Reptiles, and it was in this era that the stegosaurs, a group of armored dinosaurs, became most diversified.

The answer to the question is therefore D. Late Jurassic.