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 earliest fossil evidence for sharks or their ancestors are a few scales dating to 450 million years ago, during the Late Ordovician Period. Emma Bernard, a curator of fossil fish at the Museum, ...

Amateurs, too, can look at local rocks to learn about what life was like in the Ordovician Period, 505 to 438 million years ago. Some of our area's unique geological features and the processes that ...

The oldest echinoids come from the Late Ordovician Period and are approximately 450 million years old. The closest sister group to the echinoids are the holothurians and the two groups must have ...

But first there was a period of biological regrouping following the disastrous climax to the Ordovician. The recovery soon got under way in the oceans as climbing temperatures and rising sea ...

The theory would explain the presence of an odd density of impact craters around the equator dating back to the Ordovician period. A ring could have also contributed to one of the coldest periods ...

Historical timeline of the development of modern weapons ... In the second half of the 18th century, musket design branched out. This period produced a number of single-purpose firearms.

This timeline would help determine the period during which these trilobites lived ... Tuff-bearing upper Cambrian to lowermost Ordovician strata on Ko Tarutao island, Satun province, southernmost ...

The fossils that these layers contain are world-famous for the details that they record about life on Earth during the Late Ordovician Period. Besides preserving pieces of Earth's history, limestone ...

Until recently, scientists thought arthropods flourished during the Cambrian Period (538 million to 485 million years ago), which came before the period in which the specimen found by Parry's team ...

This ancient fossil belongs to a newly identified arthropod species, Lomankus edgecombei, from the Ordovician period. Arthropods, a diverse group ...