dating back to the Ordovician period of geological time. Ostracods are tiny crustaceans known from thousands of living species in oceans to rivers, lakes and ponds today and from countless fossil ...

Ostracods are some of the most commonly found fossil remains, stretching all the way from the Ordovician to the present – a span of over 480 million years. But normally it’s only the hard ...

The Museum’s collection of fossil and recent (living) ostracods includes 20,000 single specimen mounts ... The collection covers the entire geological history of the Ostracoda, from the Ordovician to ...

The series of extinctions that occurred during the Ordovician and Silurian periods between 445 and 415 million years ago wiped out as much as 85 percent of all animal species on Earth. It was the ...

This unprecedented die-off is now known as the earth’s first mass extinction, the Late Ordovician mass extinction or simply LOME. Many researchers have devoted time, or even careers, to uncovering the ...

This era of intense bombardment, known as the Ordovician impact spike, may have resulted from meteorites falling from the ring rather than flying in from space, which would explain the strange ...

A study published this month links an uptick in impact craters during the Ordovician Period, an era before animals lived on land, to a ring made of asteroid debris that encircled our planet for ...