An artist's illustration shows Deinosuchus riograndensis swimming with an early alligator relative in the wetlands of the Western Interior Seaway in southwestern North America, during the Late ...

The theme for this month's geoscience blog carnival, The Accretionary Wedge #9, is to discuss a significant geologic event. What event (or period, or feature) of Earth history has had an effect on you ...

A new study that used fossil oyster shells as paleothermometers found the shallow sea that covered much of western North America 95 million years ago was as warm as today's tropics. A new University ...

Two remarkable new species of horned dinosaurs have been found in Grand Staircase-Escalante National Monument, southern Utah. The giant plant-eaters were inhabitants of the "lost continent" of ...

Drillholes interpreted as the products of gastropod predation have become the most widely applied proxy for predator-prey interactions in the fossil record. In a broader sense, they have also become ...

Dinosaur tracks were uncovered after flooding in the Big Sandy Creek neighborhood on July 5. (Courtesy of Travis County) Several massive, three-toed footprints etched in limestone were discovered near ...

Research led by scientists at the American Museum of Natural History shows that ammonites—an extinct type of shelled mollusk that's closely related to modern-day nautiluses and squids—made homes in ...

University of Tübingen-led team traces Deinosuchus to its proper place on the crocodilian family tree An international research team led by the University of Tübingen’s Dr. Márton Rabi has found that ...

For generations, scientists seeking to learn about prehistoric ocean life have flocked to a place that’s about as far from the ocean as you can get — dry, dusty western Kansas. What they’re finding ...

No aquatic reptiles today can match mosasaurs, ocean-dwelling creatures of the Cretaceous period that looked something like a cross between a whale and a shark. Now, a group of researchers have ...

The rise of the Rocky Mountains and the appearance of a major seaway that divided North America may have boosted the evolution of new dinosaur species, according to a new study. The rise of the Rocky ...