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TaxNo: 4906Beckeroceras khanakasuense
Suborder: Agoniatitina
Superfamily: Mimoceratoidea
Family: Mimosphinctidae
Subfamily: Mimosphinctinae
Genus: Beckeroceras
Species: khanakasuense
Qualifier: ss
Author: Yatskov 1990,p.29
Lower Boundary: LD3B base:Anetocer.Range Z. base [12,10], 406.4 million years
Upper Boundary: LD3C--LD3D: Anetoceras Range Zone top, 405.5 million years