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Other Cretaceous Fossils
Crocodiles are a recent addition to our knowledge of the marine ecosystem that existed in southern Manitoba during the Late Cretaceous Period. Known solely from teeth associated with one specimen which is proudly housed at the Canadian Fossil Discovery Centre in Morden, the genus Hyposaurus was at least an occasional visitor to the salt waters of the Western Interior Seaway, preying on animals such as fish and birds.
Hyposaurus was almost exclusively nearshore marine in its habitat, which has lead Canadian Fossil Discovery Centre paleontologists to speculate about the proximity of the shoreline in Manitoba during the Campanian Stage of the Late Cretaceous Period.
While Hyposaurus is a rare and unique addition to the marine vertebrates that existed in southern Manitoba 80 million years ago, it was almost certainly out-competed by other large marine reptiles such as the mosasaurs and plesiosaurs.