The Cedar Mountain Formation is a geological formation located in the western United States, mostly within the state of Utah, with rocks dating to the early and middle parts of the Cretaceous Period. The Cedar Mountain Formation is most well-known… Read More ›

Late Cretaceous
List of articles about the Hell Creek Formation
Since I started this blog in the Summer of 2013, I have written several articles and I have posted several examples of my artwork associated with the Hell Creek Formation. This geological formation, dated to the very end of the… Read More ›
Lepisosteus occidentalis – the Western Gar
Introduction The Hell Creek Formation of the western United States is understandably known for its dinosaur fossils, including Tyrannosaurus and Triceratops. However, in terms of sheer physical numbers, there are other species found here which surpass them by far. One… Read More ›
The Lives of Raptor Dinosaurs: A Series of Mistaken Preconceptions
Introduction If you were to approach most people who possess a familiarity with paleontology, and ask them about what they know about raptor dinosaurs and how they lived their lives, these people would almost certainly tell you the following four… Read More ›
Champsosaurus: The Croc-Lizard of the Cretaceous
When most people hear the words “aquatic reptile”, they usually think of two things: turtles and crocodilians. Some clever people might mention sea snakes, and others might mention marine iguanas. Those who are keen on impressing you may bring up… Read More ›
Evidence of Therizinosaurs in North America during the Late Cretaceous Period
Introduction For many years, paleontologists have known about the presence of therizinosaurs (formerly classified as segnosaurs) in Asia, especially within what’s now Mongolia and China. However, Asia and North America were linked during a considerable portion of the Cretaceous Period,… Read More ›
Hybodus, the iconic shark of the dinosaur age
Many people, usually un-informed talking heads that appear on populist nature documentaries who want to make claims that will grab your attention, will say that sharks have remained unchanged since the time of the dinosaurs. It’s wrong. The Mesozoic Era,… Read More ›
Tyrannosaurus rex juvenile, two years old
Hello everyone. This is drawing which I made of a juvenile Tyrannosaurus rex, two years old. The anatomy is based upon the skeletons of juvenile Tarbosaurus (a tyrannosaur from Asia which is closely related to Tyrannosaurus) as well as from… Read More ›
Revising my Troodon drawing
Hello everyone. Time to kick off the new year with some much belated paleo-art. One of the projects on my to-do list was to re-do my old and very out-dated 2012 drawing of Troodon. Seven years ago, this drawing was… Read More ›
Dakotaraptor
Hi everybody. Here is my latest Hell Creek paleo-art. Say hello to Dakotaraptor steini, a large dromaeosaurid raptor that lived in South Dakota at the end of the Cretaceous Period. How large? We don’t have an exact measurement because this… Read More ›