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SlideshowReport

Mammoths – Larger Cenozoic Mammals

Description
Mesozoic Era: Age of the Dinosaurs

At the close of the Mesozoic, many reptile groups became extinct
A few types survived, including the turtles, snakes, and lizards
Some reptiles returned to the sea

Cenozoic Era: Age of Mammals

Mammals replace reptiles as dominant vertebrate life forms on land
Two groups evolved
marsupials
placentals

One tendency was for some mammal groups to become very large
Late Pleistocene extinctions eliminated these larger animals
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