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TaxNo: 5869Genus Guiyangoceras
Suborder: Goniatitina
Superfamily: Cycloloboidea
Family: Cyclolobidae
Subfamily: Kufengoceratinae
Genus: Guiyangoceras
Qualifier: ge
Author: Zhou 1985,p.196
Lower Boundary: Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years
Upper Boundary: lower Capitanian--upper Capitanian, 263 million years