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TaxNo: 1580Ruanites obliquecostatus
Suborder: Agoniatitina
Superfamily: Mimoceratoidea
Family: Mimosphinctidae
Subfamily: Anetoceratinae
Genus: Ruanites
Species: obliquecostatus
Qualifier: ss
Author: Ruan & He 1974,p.238
Lower Boundary: CNG Tangdin Fm. base, 406.4 million years
Upper Boundary: CNG Tangdin Fm.--Lower Tangxiang Fm., 405.8 million years