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TaxNo: 6564Cryptotyloceras gordoni+
Suborder: Goniatitina
Superfamily: Gastrioceratoidea
Family: Glaphyritidae
Subfamily: Glaphyritinae
Genus: Cryptotyloceras
Species: gordoni+
Qualifier: ss
Author: Titus 2000,p.32
Lower Boundary: GBY E2a2--E2a3 (Eu.bisulcatum--yatesae), 323 million years
Upper Boundary: DER E2a--E2b, 322.5 million years