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TaxNo: 7015Genus Kourazoceras
Suborder: Tornoceratina
Superfamily: Tornoceratoidea
Family: Tornoceratidae
Subfamily: Tornoceratinae
Genus: Kourazoceras
Qualifier: ge
Author: Becker 2002,p.176
Lower Boundary: UD2D--UD2E:globosum--P.petterae [11,30], 372 million years
Upper Boundary: UD2E--UD2F:petterae--P.lentiforme[11,80], 371.6 million years