Polyptychodon was a 23 foot long pliosaur which lived around North America, South America, and Europe during the middle Cretaceous Period 100-90 million years ago. The name Polyptychodon means “many-folded tooth” and refers to the ribbed surface on the teeth’s… Read More ›
pliosaur
Kronosaurus
Kronosaurus was a massive marine reptile called a pliosaur which lived in the waters around northeastern Australia during the middle Cretaceous Period circa 105-100 million years ago. The fossils of this animal were discovered in 1899 in Queensland, Australia, consisting… Read More ›
Hauffiosaurus
Hauffiosaurus was a genus of plesiosaur which lived around England and Germany during the early Jurassic Period. There are currently three known species: H. zanoni, H. tomistomimus, and H. longirostris. Of these, Hauffiosaurus longirostris was the largest, measuring almost 16… Read More ›
Macroplata
Macroplata was a 15 foot long plesiosaur which lived around England during the early Jurassic Period 199 million years ago. In either late 1927 or early 1928, a plesiosaur skeleton was discovered in a limestone quarry in Harbury, Warwickshire, England…. Read More ›
Brachauchenius
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 ›
Peloneustes
Peloneustes was a 13 foot long pliosaur which swam in the sea around England during the middle of the Jurassic Period 165 million years ago. The first specimen of this animal was found near the city of Peterborough, Cambridgeshire, England… Read More ›
Pliosaurus
We all know that dinosaurs walked the earth in prehistoric times, and many of us are also aware that pterosaurs flew across the skies and fearsome marine reptiles swam in the oceans. Some of these marine reptiles (which weren’t dinosaurs,… Read More ›
Hastanectes
Hastanectes valdensis, whose name means “the Hastings swimmer from the Weald”, was a prehistoric marine reptile which swam the seas around Europe during the early Cretaceous Period approximately 140 to 135 million years ago. The first fossils of this creature… Read More ›
Leptocleidus
Leptocleidus was a genus of plesiosaur which lived in the oceans during the early Cretaceous Period about 135 to 125 million years ago. It measured just 10 feet long, which is quite small for a plesiosaur. Three species of Leptocleidus… Read More ›
Baptanodon
This is Baptanodon, an ichthyosaur which lived during the late Jurassic Period about 160-155 million years ago. During this time, the central part of North America was covered with a body of saltwater known as the Sundance Sea, and Baptanodon… Read More ›