Fossils of 444 million-year-old creatures whose bodies were preserved "inside-out" have been discovered in South Africa.

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 ...

You know that unsettling feeling you get when you're swimming in a freshwater body, and some underwater plant grazes your ...

In place of oxygen, the ocean was full of hydrogen sulfide, which the researchers believe may have caused the organism to ...

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 ...

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

"If a massive star were to explode as a supernova close to the Earth, the results would be devastating for life on Earth," ...

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 ...

After retirement, Sloan plans to move to Winona, where his wife Sally works as a professor of mathematics. He said he intends to study seashell fossils in southeastern Minnesota from the Ordovician ...

SEE ALSO: Hubble sees mini galaxies surrounding Andromeda are pretty wild A fossil of a type of brachiopod, Floweria chemungensis, went extinct in the late Devonian period. Credit: Andrew Bush ...

There are around 800 extant species and the group has a long and detailed fossil record stretching back about 450 million years ago to the Late Ordovician Period. They belong to the Echinoidea, one of ...