America

Toxolophosaurus

Introduction Allow me to introduce you to Toxolophosaurus, “the bow-crested lizard”, which lived in Montana during the early to middle of the Cretaceous Period approximately 135-115 million years ago. Despite its name, Toxolophosaurus wasn’t either a dinosaur or a lizard…. Read More ›

Cifelliodon

Cifelliodon was a prehistoric mammal which lived in Utah during the early Cretaceous Period approximately 135 million years ago. The only specimen which we have of this animal is a single upper jaw measuring 2.75 inches (7 cm) long which… Read More ›

List of My Articles on the Cedar Mountain Formation

The reconstructed skull of Utahraptor, on display in Brigham Young University’s Museum of Paleontology. Photo by Jaren Wilkey of Brigham Young University (January 26, 2018). Creative Commons Attribution-Share Alike 4.0 International license.https://commons.wikimedia.org/wiki/File:BYU_Utahraptor_skull.jpg. The Cedar Mountain Formation is a North American geological formation which… Read More ›

Martharaptor

Martharaptor was a therizinosaur theropod dinosaur which lived in Utah during the early Cretaceous Period approximately 135-132 million years ago. Therizinosaurs are known mostly from the middle and later parts of the Cretaceous Period. Fossils dating to the early Cretaceous… Read More ›

Cedrorestes

Cedrorestes, which means “Cedar Mountain dweller”, was an ornithopod dinosaur which lived in Utah during the early Cretaceous Period. The fossils of this animal were discovered in eastern Utah in 2001. These were fragmentary remains consisting of pieces of ribs,… Read More ›

Diplurus

Diplurus was a 3 foot long freshwater coelacanth fish which lived in the northeastern United States during the late Triassic and early Jurassic Periods, approximately 220-190 million years ago. It is divided into three species: D. longicaudatus, D. newarki, and… Read More ›

Anchisaurus

Anchisaurus was a prosauropod dinosaur whose fossils have been found in America’s northeastern states of Massachusetts and Connecticut within rocks dated to the beginning of the Jurassic Period, about 200-190 million years ago. Anchisaurus is one of the more well-known… Read More ›