A tiny fossil fish from Alberta is forcing scientists to rethink a story that has sat quietly in textbooks for decades. It is ...

This one-ton turtle once ruled South America’s rivers — until a changing planet proved too much for even the largest ...

Finally, it should be noted that Leptocleididae remains have previously been discovered in brackish or freshwater fossil beds, although this latest batch is unprecedented. That said, the past ...

About five to 10 million years ago, giant turtles that dwarfed humans roamed freshwater swamps in South America.Researchers have uncovered shells belonging to Stupendemys geographicus, the largest ...

Scientists in Australia have uncovered an exceptional fossil—a 15-million-year-old freshwater fish—that provides new insights into the prehistoric world. This rare discovery, led by a team from the ...

Researchers identified fossils in a 100-million-year-old Moroccan freshwater system as a marine reptile. Previously, the reptile was thought to have only spent time in saltwater. Some once believed ...

At the end of the Cretaceous Period, a type of giant reptile called mosasaurs occupied and dominated oceanic food webs. Mosasaurs had long bodies and were related to both snakes and monitor lizards.

An extraordinary fossil bed in the arid grasslands of the Australian continent, called McGraths Flat, really is the Lagerstätte that keeps on giving. Just a few years after uncovering a trove of ...

The brilliant iridescent hues found in ammolite come from tiny air gaps in the fossils’ layers, a new study finds. By Alexa Robles-Gil Millions of years ago, squid-like creatures called ammonites swam ...

About five to 10 million years ago, giant turtles that dwarfed humans roamed freshwater swamps in South America.Researchers have uncovered shells belonging to Stupendemys geographicus, the largest ...