The Mesozoic Period produced some of the largest and most unusual herbivores ever to walk the Earth. Fossils reveal impressive size, armor, and adaptations, but many details of their behavior remain ...

In a study published in the Journal of Vertebrate Paleontology, researchers Dr. Giovanna M. X. Paixão and her colleagues analyzed the fossilized remains of three Upper Cretaceous egg clutches. One of ...

A lost cache of 250-million-year-old fossils from Australia has rewritten part of the story of life after Earth’s worst mass extinction. Instead of a single marine amphibian species, researchers ...

The Mesozoic ocean may have been one of the most dangerous places in Earth’s history, filled with predators that still feel unreal today. Fossils reveal massive jaws, strange body shapes, and hunting ...

Pt. 3 issued by the Survey under a variant name: Geological and Natural History Survey. By. J. F. Whiteaves. Pts. 1-3 published in Montreal. siris_sil_232667 ...