Many reptile groups became extinct at the close of the ______.
A) Paleozoic
B) Cenozoic
C) Precambrian
D) Mesozoic

Question

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The Mesozoic era, also known as the Age of Reptiles, occurred from 252 to 66 million years ago and saw the rise and dominance of many reptile groups such as dinosaurs, pterosaurs, and mosasaurs. However, at the end of the Mesozoic, a mass extinction event occurred, wiping out many of these reptile groups along with other species, and opening the path for the evolution of mammals and birds in the following Cenozoic era.

Many Reptile Groups Became Extinct at the Close of the ______