Introduction Gastonia was an armored dinosaur measuring approximately 16.5 feet long which lived in western North America during the early Cretaceous Period approximately 135-130 million years ago. The first specimens were found in eastern Utah in 1989, and more have… Read More ›
Thalassomedon, meaning “lord of the sea”, was a 38 foot long elasmosaurid plesiosaur which lived within the Mowry Sea, the shallow sea that covered North America during the middle of the Cretaceous Period 97-95 million years ago. In March 1939,… Read More ›
Brachauchenius was a 15 foot long pliosaur which lived in the shallow sea that once covered the middle of North America during the middle Cretaceous Period 100-90 million years ago. Fossils of this animal were first found by Charles H…. Read More ›
Trinacromerum was a 12 foot long plesiosaur which lived within the Mowry Sea, the shallow sea that covered North America during the middle of the Cretaceous Period 95 million years ago. The holotype specimen was found in 1888 within the… Read More ›
Introduction Cimoliopterus was pterosaur with a supposed wingspan of 16 feet or thereabouts, which inhabited Europe and North America during the middle of the Cretaceous Period approximately 100-94 million years ago. There are presently two species of this pterosaur genus:… Read More ›
And today’s topic which is sure to start an argument is…Are there three different species of Falcarius within the Yellow Cat Member of the Cedar Mountain Formation? The basal therizinosaur Falcarius utahensis, which was officially named and described in 2005… Read More ›
Halecodon denticulatus was a species of prehistoric saltwater fish, which is estimated to have measured 20 inches long, and which lived around 105-98 million years ago within the Mowry Sea which once covered the center of North America during the… Read More ›
Platypterygius, meaning “flat fin”, was a genus of ichthyosaur which lived during the middle of the Cretaceous Period approximately 115-95 million years ago. It was one of the last ichthyosaurs to exist before the entire group went extinct. Traditionally treated… Read More ›
During the Mesozoic Era, dinosaurs ruled the land, but their flying cousins the pterosaurs ruled the sky. They first appeared during the late Triassic Period about 210 million years ago, and persisted until the reign of the reptiles came to… Read More ›
Acrocanthosaurus, meaning “high-spined lizard”, was a large 35 foot long meat-eating dinosaur which lived in North America during the middle of the Cretaceous Period approximately 115-110 million years ago. It is distinctive for the unusually tall neural spines on the… Read More ›
DINOSAURS AND BARBARIANS 