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TaxNo: 74Paragattendorfia humilis+
Suborder: Tornoceratina
Superfamily: Prionoceratoidea
Family: Prionoceratidae
Subfamily: Prionoceratinae
Genus: Paragattendorfia
Species: humilis+
Qualifier: ss
Author: Schindewolf 1924,p.105
Lower Boundary: Devonian--Carboniferous Boundary [DCB], 359.2 million years
Upper Boundary: low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years