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TaxNo: 5551Syngastrioceras suborientale aff.
Suborder: Goniatitina
Superfamily: Gastrioceratoidea
Family: Glaphyritidae
Subfamily: Glaphyritinae
Genus: Syngastrioceras
Species: suborientale aff.
Qualifier: af
Author: Nishida 1971,p.8
Lower Boundary: Langsettian--Duckmantian, Westphal.A--B, 311.3 million years
Upper Boundary: UAR Lower--Upper Atoka Fm., 309.2 million years