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TaxNo: 3388Schistoceras? montgomeryense
Suborder: Goniatitina
Superfamily: Schistoceratoidea
Family: Schistoceratidae
Genus: Schistoceras?
Species: montgomeryense
Qualifier: ss
Author: Miller & Gurley 1896,p.38
Lower Boundary: UTX Graford Fm.--Brad Fm., 305.3 million years
Upper Boundary: UTX Graham Fm. top, 301 million years