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TaxNo: 1801Oxytornoceras sp.*
Suborder: Tornoceratina
Superfamily: Tornoceratoidea
Family: Tornoceratidae
Subfamily: Tornoceratinae
Genus: Oxytornoceras
Species: sp.*
Qualifier: of
Author: Petersen 1975,p.18
Lower Boundary: UD2F--UD2G:(subvaricatum Zone base), 370.8 million years
Upper Boundary: UD2H--UD2I:(mamilliferum base) [12,90], 370 million years