By the mid-19th century local fossils had come to the attention of formally trained scientists.

In this night at the museum, the fossils come alive.

By the mid-19th century the state's fossils had already come to the attention of trained scientists.

And there is so much more where these fossils came from.

It is also believed that the fossils came from the late Cretaceous, around 90 million years ago.

He pointed to a level not far from the one the older fossil had come from.

Local fossils came to the attention of formally trained scientists by the mid-19th century.

The first definitive fossils of life on Earth come at 2.1 billion years ago, he said.

New Mexico's fossils first came to the attention of formally trained scientists by the mid-19th century.

How can they tell what animals their fossils come from?