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TaxNo: 2505Tumulites pseudobilinguis 1
Suborder: Goniatitina
Superfamily: Dimorphoceratoidea
Family: Girtyoceratidae
Subfamily: Girtyoceratinae
Genus: Tumulites
Species: pseudobilinguis 1
Qualifier: sy
Author: Horn 1960,p.327
Valid: Tumulites pseudobilinguis (Bisat 1922) TAX2547
Lower Boundary: DER lowest E1--E1 alpha, 326 million years
Upper Boundary: GBY E1b -- E1c; DER E1 alpha -- E1 beta, 325 million years