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During the Cambrian, most of the Earth’s land was located in the Southern Hemisphere.

During the Mesozoic, sea levels were higher than present day.

None of the reptiles from the Cretaceous period survived the end-Cretaceous mass extinction.

Glacial environments are an example of a transitional depositional environment.

Birds evolved during the Jurassic.

Dinosaurs are examples of ____.​

Of the three rock types, igneous rocks are the best suited for radiometric dating techniques.

Which animal below is a mammal?​

The Ornithiscian dinosaurs are known as the lizard-hipped dinosaurs.

Tyrannosaurus rex is an example of a theropod, a lizard-hipped dinosaur.