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TaxNo: 1025Paradimeroceras bullatum
Suborder: Tornoceratina
Superfamily: Dimeroceratoidea
Family: Dimeroceratidae
Subfamily: Dimeroceratinae
Genus: Paradimeroceras
Species: bullatum
Qualifier: ss
Author: Lange 1929,p.39
Lower Boundary: UD2F--UD2G:(subvaricatum Zone base), 370.8 million years
Upper Boundary: UD2H--UD2I:(mamilliferum base) [12,90], 370 million years