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TaxNo: 2922Gastrioceras occidentale
Suborder: Goniatitina
Superfamily: Gastrioceratoidea
Family: Gastrioceratidae
Genus: Gastrioceras
Species: occidentale
Qualifier: ss
Author: Miller & Faber 1892,p.166
Lower Boundary: UKY Kendrick Shale base, 313 million years
Upper Boundary: UKY Kendrick Shale top, 310.6 million years