Dinosaur & Other Prehistoric Animal Vocabulary

Period of history before humans started writing down history.

Remains or traces of ancient animals or plants that turned into rocks over millions of years.

When no members of a species are left, like the dinosaurs.

Science that studies ancient life, such as animals or plants through fossils.

A long period in Earth’s history that begins and ends with important changes.

Era from 252 million to 66 million years ago, known as the dinosaur age.

First period of the Mesozoic, from 252 million to 201 million years ago.

Second period of the Mesozoic, from 201 million to 145 million years ago.

Third period of the Mesozoic, from 145 million to 66 million years ago.

Era before the Mesozoic, from 540 million to 252 million years ago.

Era after the Mesozoic, from 66 million years ago to today.