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TaxNo: 4972Martoceras? jazwae
Suborder: Goniatitina
Superfamily: Cycloloboidea
Family: Vidrioceratidae
Genus: Martoceras?
Species: jazwae
Qualifier: ss
Author: Krotov 1885,p.208
Lower Boundary: Sakmarian--Artinskian [SAK--ART], 284.4 million years
Upper Boundary: Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years