Most ceratopsians, or horn-faced dinosaurs, were medium to large-sized beasts often measuring 20-30 feet long. However, many others were much smaller. One of these was a 6 foot long pygmy-sized ceratopsian called Leptoceratops which inhabited North America at the very… Read More ›
Mesozoic
Torosaurus
Introduction Most people equate the large ceratopsian dinosaur Triceratops as the arch enemy of Tyrannosaurus. Hundreds, perhaps thousands of artworks show these two species forever locked in mortal combat. But Triceratops was not the only horned dinosaur to dwell in… Read More ›
Estesesox
Introduction Pikes are some of the largest carnivorous freshwater fish today. Some species grow to be 5 feet long and are the dominant predators in their watery world. Pikes belong to the family Esocidae, which also includes blackfish and mud… Read More ›
Acronichthys
Acronichthys was a tiny fish measuring just 4 cm (1.6 inches) long which lived in freshwater environments within western North America during the late Cretaceous Period 90-66 million years ago. Fossils of this fish, or fossils which might belong to… Read More ›
Aerotitan
Aerotitan was a pterosaur which lived in South America during the late Cretaceous Period 70 million years ago. The only fossil of this creature, consisting of just the front end of the upper jaw, was discovered in the early 2000s… Read More ›
Sulcusuchus
Sulcusuchus was a small polycotylid plesiosaur which lived off the coast of Argentina during the late Cretaceous Period around 70 million years ago. The fossils of this animal (collection ID code: MLP 88-IV-10-1) were first discovered 25 km north of… Read More ›
Megalneusaurus
In the prehistoric past, the center of North America has been underwater on several occasions. Perhaps the most well-known of these instances was during the late Cretaceous Period when North America was cut in half by the Western Interior Seaway… Read More ›
Eternauta
Eternauta patagonica was an ichthyosaur which lived around Argentina during the late Jurassic Period 152-145 million years ago. Fossils of this Jurassic marine reptile, consisting of a well-preserved skull measuring nearly four feet long, a flipper, and fragments of ribs,… Read More ›
Catutosaurus
Catutosaurus, meaning “the lizard from Los Catutos”, was a small ichthyosaur which lived around Argentina during the late Jurassic Period 152-145 million years ago. Fossils of this animal were found in the Vaca Muerta (“Dead Cow”) Formation, and the exact… Read More ›
Announcement: New Sundance Formation merch on Redbubble!
Hello all. I recently uploaded a new design onto my art page on Redbubble featuring the Sundance Formation. This is a geologic formation found in the center of North America which spans the middle and late Jurassic Period 170-157 million… Read More ›