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About: Paleopsephurus     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:Species, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: ThingEukaryoteAnimalFishanimaleukaryotefishspecies New Facet based on Instances of this Class

Palaeopsephurus is an extinct genus of paddlefish in the Acipenseriformes family Polyodontidae. At present the genus contains the single species Palaeopsephurus wilsoni. The genus is known primarily from the Late Cretaceous (Maastrichtian) aged Hell Creek Formation of Montana. Palaeopsephurus is one of two extinct paddlefish genera to have been found in the North American fossil record, with the other genus and species Crossopholis magnicaudatus having been described and found in the Early Eocene Green River Formation. A third extinct genus Protopsephurus with the single species Protopsephurus liui was described from China in 1994. Only two modern paddle fish species are known, Polyodon spathula in the Mississippi River System of North America, and the extinct Psephurus gladius in the Yang