Gigantoraptor was a massive 25-30 foot long oviraptorosaurian theropod dinosaur which lived in eastern Asia (and possibly in North America) during the middle of the Cretaceous Period. The fossils of this enormous bird-like dinosaur, consisting of a partial skeleton, were… Read More ›
Cretaceous Period
Hylaeosaurus
Hylaeosaurus was a 15 foot long armored dinosaur which lived in England (and possibly elsewhere in Europe) during the early Cretaceous Period approximately 135 million years ago. The bones of this animal were discovered in July 1832 within Tilgate Forest,… Read More ›
Suchosaurus: The First Spinosaur to be Named
Introduction Suchosaurus, “the crocodile lizard”, was a spinosaur theropod dinosaur measuring approximately 25 feet long which lived in southern England from 139-132 million years ago. A fossilized tooth belonging to this animal was discovered in the early 1800s, and was… Read More ›
Toxolophosaurus
Introduction Allow me to introduce you to Toxolophosaurus, “the bow-crested lizard”, which lived in Montana during the early to middle Cretaceous Period approximately 135-115 million years ago. Despite its name, Toxolophosaurus wasn’t either a dinosaur or a lizard. Instead it… Read More ›
Calamopleurus
Calamopleurus was a 3 foot long freshwater fish which lived in Brazil and northern Africa during the early and middle Cretaceous Period approximately 130-95 million years ago. Calamopleurus belonged to a family called Amiidae. Today, the only surviving amiid is… Read More ›
Melvius
Introduction Melvius was a prehistoric freshwater fish which lived in North America during the late Cretaceous Period 74-66 million years ago. Melvius belonged to a family called Amiidae. Today, the only surviving amiid is the Bowfin (Amia calva), which is… 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 ›
Synechodus
Synechodus was a genus of prehistoric saltwater shark which lived from the early Permian Period until the late Eocene Epoch of the Paleogene Period, 290 to 37 million years ago (Ivanov 2005, pages 127-138). Fossils of this animal reached around… Read More ›
Acamptonectes
Acamptonectes densus was a 4 meter (13 foot) long ichthyosaur which swam in the seas around western Europe during the early Cretaceous Period 131-129 million years ago. The first specimen was found in the seaside village of Speeton, Yorkshire, England… Read More ›
Goniopholis: The Typical Mesozoic Crocodile
Dinosaurs ruled the land during the Mesozoic Era, but crocodiles and their relatives unquestionably ruled the water. Prehistoric crocodiles are usually relegated to the background as supporting actors or extras in our imagined Mesozoic dramas, but the truth is that… Read More ›