America

Allosaurus

Allosaurus fragilis is one of the most famous and easily-recognized dinosaurs. Practically every museum has at least one specimen, either on display or in collections, and absolutely every basic-level children’s book about dinosaurs mentions Allosaurus, usually accompanied with a picture…. Read More ›

Pachycephalosaurus

Pachycephalosaurus wyomingensis was the last and largest of the so-called “dome-headed” dinosaurs. It measured fifteen feet long and lived 68-65.5 million years ago, right at the very end of the age of dinosaurs. Its fossils have been found in Wyoming… Read More ›

Albertosaurus

Albertosaurus, named after the province of Alberta, Canada, is one of the most well-known theropod dinosaurs. It is a distant relative of T. rex which lived in western North America approximately 75 million years ago (MYA). It was also one… Read More ›

Dermodactylus

Pterosaurs were prehistoric winged reptiles distantly related to the dinosaurs – they were NOT actually flying dinosaurs, despite what some people might tell you. Pterosaurs are broadly categorized into two biological groups called “sub-orders”: the pterodactyloids (this is where the… Read More ›

Cretoxyrhina and Squalicorax

Let’s change from dinosaurs to some other prehistoric life. Here are two prehistoric sharks. The large gray one on top is called Cretoxyrhina mantelli, more commonly known as the Ginsu Shark. The smaller blue one underneath is called Squalicorax falcatus,… Read More ›