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Trinacromerum
author: Julius T. Csotonyi/Novapix
reference: t-din03-20151
Image Size 300 DPI: 21 * 31 cm
A Late Cretaceous marine reptile, Trinacromerum, cruises prehistoric Manitoba's oceans, while a Champsosaurus and an ammonoid swim by below. Manitoba is generally devoid of dinosaur fossils, for the province was inundated by the Western Interior Seaway for the vast majority of the Mesozoic that is preserved in its sedimentary strata. Trinacromerum is an extinct genus of sauropterygian reptile belonging to the plesiosaur suborder. It lived during the Late Cretaceous period. It was 3 meters (10 feet) long. Its teeth show it fed on small fish.
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