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TaxNo: 28Paragattendorfia patens*
Suborder: Tornoceratina
Superfamily: Prionoceratoidea
Family: Prionoceratidae
Subfamily: Prionoceratinae
Genus: Paragattendorfia
Species: patens*
Qualifier: ss
Author: Vöhringer 1960,p.147
Lower Boundary: DER Ps. westfalicus--Paragattend. patens, 358 million years
Upper Boundary: low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years