Introduction Apsopelix and Pelecorapis were two genera of closely-related prehistoric saltwater fish which lived during the middle to late Cretaceous Period. Fossils of Apsopelix have been found in England, France, and in the American states of Montana, South Dakota, Colorado,… 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 ›
Edgarosaurus was a 12 foot long short-necked plesiosaur which lived within the Mowry Sea during the middle Cretaceous Period 105-100 million years ago. In 1993, a well-preserved fossil specimen consisting of the skull, neck, and one front flipper (collection ID… 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 ›
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 ›
Leucichthyops vagans was a species of prehistoric salmonid fish which lived in what’s now western North America during the middle of the Cretaceous Period approximately 100 million years ago. The species was named in 1919 by Theodore D. A. Cockerell,… Read More ›
Erythrinolepis was a prehistoric freshwater fish which lived in western North America during the middle to late Cretaceous Period approximately 100-66 million years ago. The name Erythrinolepis was coined by the paleontologist Theodore D. A. Cockerell in 1919. The name… Read More ›
DINOSAURS AND BARBARIANS 