The fossils at John Day span 40 million years and offer one of the richest evolutionary records of the Cenozoic Era, including prehistoric alligators, bears, dogs, pigs, horses, cougars and even ...

In turn, the extinction of the dinosaurs and several other animal groups 65.5 million years ago defines the beginning of the Cenozoic era. We are including several ... to connect with the ...

Phorusrhacids, as they are known by their scientific name, were meat-eating birds that during the Cenozoic Era were at the ...

The photos of fossils on the left hand side of the poster are also color-coded and keyed to the geologic ages during which the organisms pictured were present in the state (e. g. the Brontothere and ...

New fossil discoveries reveal more of this early ... and molars. In the early Cenozoic era, after the dinosaurs became extinct, the number and diversity of mammals exploded. In just 10 million ...

3 min read At the dawn of the Paleogene—the beginning of the Cenozoic era—dinosaurs, pterosaurs, and giant marine reptiles were conspicuously absent from the face of the Earth. Rodent-size ...

The remains were found in a soil layer dating from the Miocene epoch of the Neogene period of the Cenozoic era. A full-scale excavation began after the lower jaw fossil was discovered on Sept.

Understanding ancient ocean temperatures—particularly from the Cenozoic era (the past 66 million years), in which Earth experienced dramatic climate shifts—helps scientists reveal more about ...

The fossil in question dates back to the eocene epoch (56 million to 33.9 million years ago) of the cenozoic era, confirmed a ...

That puts Megatooth, and probably some of its ancestors, at the top step of the prehistoric food chain when it stalked the seas during the Cenozoic era, which began about 66 million years ago and ...

Individual fossil samples like this are the basis for testing the effects of biases on the global record of biodiversity history. From "Sustained Mesozoic-Cenozoic diversification of marine ...