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TaxNo: 1200Paratorleyoceras nehdense
Suborder: Tornoceratina
Superfamily: Dimeroceratoidea
Family: Cheiloceratidae
Genus: Paratorleyoceras
Species: nehdense
Qualifier: ss
Author: Kayser 1873,p.625
Lower Boundary: UD2A--UD2B:(verneuili Zone base) [07,75], 374 million years
Upper Boundary: UD2H--UD2I:(mamilliferum base) [12,90], 370 million years