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TaxNo: 4997Cancelloceras (Cancelloceras) pachygyrum
Suborder: Goniatitina
Superfamily: Gastrioceratoidea
Family: Gastrioceratidae
Genus: Cancelloceras
Subgenus: Cancelloceras
Species: pachygyrum
Qualifier: ss
Author: Yang et al. 1983,pl.1,fig.11
Lower Boundary: RUS Nm2b3--Nm2c1,Bilinguites-Cancelloc.G, 314.8 million years
Upper Boundary: Marsdenian--Yeadonian [MRD--YEA], 313.8 million years