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TaxNo: 147Imitoceras abundans
Suborder: Tornoceratina
Superfamily: Prionoceratoidea
Family: Prionoceratidae
Subfamily: Prionoceratinae
Genus: Imitoceras
Species: abundans
Qualifier: ss
Author: Miller & Collinson 1951,p.460
Lower Boundary: UMO Chouteau Lst. base, 354 million years
Upper Boundary: UMO Chouteau Lst. top, 353 million years