3 min read During the Ordovician period, part of the Paleozoic era ... known mainly from the tiny fossil teeth they left behind. The few complete fossils that have been found suggest they were ...

Paleontologists have uncovered a 444-million-year-old fossil with remarkably intact soft tissues, such as muscles, ...

However, by the early Ordovician period, Megacheirans were in decline, making L. edgecombei one of the last surviving species ...

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 ...

A new species of fossil from 444 million years ago that has perfectly preserved insides has been affectionately named "Sue" ...

Detail images of fossils from the Ordovician Period outcrop on Anticosti Island, Quebec, Canada. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to ...

The earliest fossil evidence for sharks or their ancestors are a few scales dating to 450 million years ago, during the Late Ordovician Period. “Shark-like scales from the Late Ordovician have been ...

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 ...

Within it are several fossilized marine creatures from the Ordovician Period, 488.3 million-443.7 million years ago. Such fossils are found across the Himalayas, and finds include trilobites ...

the microfossils dating to the Lower Ordovician Period, approximately 480 million years ago, fill an approximately 25-million-year gap in knowledge by reconciling the molecular clock—or pace of ...

The oldest echinoids come from the Late Ordovician Period and are approximately 450 million years ... element of the benthos throughout the Palaeozoic and are never common as fossils. Although all had ...

Sue dates back to the Late Ordovician mass extinction (443 ... evolutionary history or how it compares to other fossils from the same time period. "We are now sure she was a primitive marine ...