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TaxNo: 1971Sulcogirtyoceras burhennei+
Suborder: Goniatitina
Superfamily: Dimorphoceratoidea
Family: Girtyoceratidae
Subfamily: Girtyoceratinae
Genus: Sulcogirtyoceras
Species: burhennei+
Qualifier: ss
Author: Brüning 1923,p.265
Lower Boundary: DER Go spirale--Go beta rotundum, 328.6 million years
Upper Boundary: DER rotundum--Go beta suerlandense, 328.4 million years