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TaxNo: 6858Subfamily Maternoceratinae
Suborder: Anarcestina
Superfamily: Beloceratoidea
Family: Gephuroceratidae
Subfamily: Maternoceratinae
Qualifier: fy
Author: Korn & Klug 2002,p.113
Valid: Subfam.Gephuroceratinae TAX5764
Lower Boundary: DER do one beta base, 378.7 million years
Upper Boundary: UD1J--UD1K:paradox.--A.varicosum [04,85], 376.9 million years