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Caypullisaurus

Caypullisaurus was a 20 foot long ichthyosaur which lived off the coast of Argentina (and possibly elsewhere) during the late Jurassic and early Cretaceous Periods 150-140 million years ago. In 1989, the front half of a skeleton of a medium-sized… Read More ›

Muraenosaurus

Muraenosaurus, “the moray eel lizard”, was a medium-sized plesiosaur which lived in the sea which once covered southern England and northern France during the middle of the Jurassic Period 165-164 million years ago. In the 19th Century, a partial skeleton… Read More ›

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 ›

Shonisaurus

Shonisaurus was an absolutely gargantuan ichthyosaur which swam off North America’s Pacific coast during the middle of the Triassic Period 227 million years ago. Shonisaurus was one of the largest ichthyosaurs to have existed, measuring 45 feet long. Only a… Read More ›

Kayentatherium

Kayentatherium, “the beast from the Kayenta Formation”, was a cynodont (one of a group of mammal ancestors which are sometimes called “mammal-like reptiles”) which lived in Arizona during the early Jurassic Period approximately 185-180 million years ago. Kanyentatherium was big,… 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 ›