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TaxNo: 6085Prostacheoceras principale
Suborder: Goniatitina
Superfamily: Cycloloboidea
Family: Vidrioceratidae
Genus: Prostacheoceras
Species: principale
Qualifier: ss
Author: Bogoslovskaya & Popov 1986,p.128
Lower Boundary: Gzhelian--Asselian [C--P], 299 million years
Upper Boundary: Asselian--Sakmarian [ASS--SAK], 294.6 million years