It is in the middle of the Mesozoic era, from 201.3 to 145 million years ago.

Most of the Mesozoic era is also missing from the local rock record.

They arose in the Mesozoic era, and include 20,000 living species.

They were the dominant land plants of the Mesozoic era.

The Mesozoic era began and ended with huge extinction events.

The early part of the ensuing Mesozoic era is also missing from the local rock record.

It is the last period in the Mesozoic era.

It lived toward the end of Mesozoic Era, about 70 million years ago.

His front garden is planted entirely with vegetation from the Mesozoic era.

All of this, he says, "made labor unions look like dinosaurs waiting for the Mesozoic era to return."