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TaxNo: 2589Metadimorphoceras complex
Suborder: Goniatitina
Superfamily: Dimorphoceratoidea
Family: Dimorphoceratidae
Subfamily: Glyphiolobinae
Genus: Metadimorphoceras
Species: complex
Qualifier: ss
Author: Moore 1939,p.116
Lower Boundary: DER lowest E1--E1 alpha, 326 million years
Upper Boundary: GBY E1b -- E1c; DER E1 alpha -- E1 beta, 325 million years