In the Late Cretaceous, for example, the Western Interior Seaway split ... It was caused by a large asteroid crash-landing off the coast of Mexico, which changed the climate of the planet dramatically ...

Sixty-six million years ago, an asteroid impact triggered the extinction of non-avian dinosaurs. Yet, some early birds, ...

After a temperature spike in the mid-Cretaceous, the climate began to cool, and the tenor changed. Other creatures, such as frogs, salamanders, turtles, crocodiles, and snakes, proliferated on the ...

Digital reconstruction of the Late Cretaceous (~69 million years old) crown bird Vegavis iaai that was completed following ...

Scientists have made an exciting discovery—a 69-million-year-old fossil found in Antarctica is the oldest known modern bird.

Digital reconstruction of the Late Cretaceous (~69 million years old ... which would have offered a temperate climate with ...