Trinacromerum

Sulcusuchus

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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 ›

Trinacromerum

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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 ›