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TaxNo: 2913Schistoceras missouriense+*
Suborder: Goniatitina
Superfamily: Schistoceratoidea
Family: Schistoceratidae
Genus: Schistoceras
Species: missouriense+*
Qualifier: ss
Author: Miller & Faber 1892,p.164
Lower Boundary: UTX Graford Shale base, 305.6 million years
Upper Boundary: UTX Graham Fm. top, 301 million years