The Ordovician period, which lasted from about 485 to 444 million years ago, is a significant era in Earth's history, marked by a rich diversity of marine life and notable mass extinction events.

Learn more about the time period that took place 488 to 443 million years ago. 3 min read During the Ordovician period, part of the Paleozoic era, a rich variety of marine life flourished in the ...

The oldest echinoids come from the Late Ordovician Period and are approximately 450 million years old ... strong or efficient structure and these early members must have been generalist scavengers of ...

The Ordovician world was a watery one in which ... less extreme temperatures…fostering the development of a unique diversity,” the paper reads. Most sites like it worldwide exhibit a general ...

The diversity of track types was completely unknown before our work started in earnest ... Previous work in this field involved studies on the Ordovician trace fossil assemblages from Portugal. More ...