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TaxNo: 5373Genus Demarezites
Suborder: Goniatitina
Superfamily: Cycloloboidea
Family: Cyclolobidae
Subfamily: Cyclolobinae
Genus: Demarezites
Qualifier: ge
Author: Ruzhencev 1955,p.703
Lower Boundary: Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
Upper Boundary: Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years