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TaxNo: 2221Eumorphoceras bisulcatum aff.
Suborder: Goniatitina
Superfamily: Dimorphoceratoidea
Family: Girtyoceratidae
Subfamily: Girtyoceratinae
Genus: Eumorphoceras
Species: bisulcatum aff.
Qualifier: af
Author: Ruzhencev & Bog. 1971,p.184
Lower Boundary: RUS Nm1c1--Nm1c2(uralicus--Del.bressoni), 322 million years
Upper Boundary: RUS Nm1c2--Nm2a1, Homoc.-Hudsonoc.GZ, 318.1 million years