Pragian

The Pragian was an important time during the Early Devonian Epoch, which was a very long time ago. It lasted from about 413 million years ago to 411 million years ago. Before the Pragian was the Lochkovian Stage, and after it was the Emsian Stage.

One of the best places to learn about life from this time is the Rhynie chert in Scotland. This place has fossils that help scientists learn about the world back then. The Pragian is named after the city of Prague.

In North America, this time is sometimes called Siegenian or Deerparkian.

Pragian life

Main page: Category:Pragian life

During the Pragian stage, an important group of sea creatures called ammonoids first appeared. These ammonoids belonged to a group known as the Agoniatitida. They evolved from earlier sea creatures called bactritoid nautiloid ancestors. These ancestors appeared earlier and then changed a lot later.