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TaxNo: 1581Ruanites subtilis
Suborder: Agoniatitina
Superfamily: Mimoceratoidea
Family: Mimosphinctidae
Subfamily: Anetoceratinae
Genus: Ruanites
Species: subtilis
Qualifier: ss
Author: Ruan 1981,p.19
Lower Boundary: CNG Tangdin Fm. base, 406.4 million years
Upper Boundary: CNG Tangdin Fm.--Lower Tangxiang Fm., 405.8 million years