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TaxNo: 162Intoceras osagense
Suborder: Goniatitina
Superfamily: Pericycloidea
Family: Intoceratidae
Genus: Intoceras
Species: osagense
Qualifier: ss
Author: Swallow 1860,p.659
Lower Boundary: UMO Chouteau Lst. base, 354 million years
Upper Boundary: UMO Chouteau Lst. top, 353 million years