Abstract:A nearly complete fossil of a whitefish, Coregonus beringiaensis sp. nov. (Salmoniformes: Salmonidae: Coregoninae), the oldest known record of the genus, is described from Ch'ijee's Bluff along the Porcupine River, Bluefish Basin, Yukon Territory. The new species is closest to but distinct from species within the Coregonus clupeaformis complex, especially in its low lateral line scale count, quadrate with an extensive canal and pore complex, Y-shaped lachrymal, and a unique combination of counts and measuremen… Show more
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