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TaxNo: 4217Gastrioceras? compactum
Suborder: Goniatitina
Superfamily: Gastrioceratoidea
Family: Gastrioceratidae
Genus: Gastrioceras?
Species: compactum
Qualifier: sn
Author: Meek & Worthen 1865,p.154
Lower Boundary: Yeadonian--Langsettian, Westph.A [YEA--, 313 million years
Upper Boundary: U Missourian--Virgilian [MIS--VIR], 305 million years