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TaxNo: 5399Genus Paraschistoceras
Suborder: Goniatitina
Superfamily: Schistoceratoidea
Family: Schistoceratidae
Genus: Paraschistoceras
Qualifier: ge
Author: Plummer & Scott 1937,p.248
Lower Boundary: UTX Mineral Wells Fm. base, 306.8 million years
Upper Boundary: Gzhelian--Asselian [C--P], 299 million years