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TaxNo: 5607Genus Nandanoceras
Suborder: Agoniatitina
Superfamily: Mimoceratoidea
Family: Mimosphinctidae
Subfamily: Anetoceratinae
Genus: Nandanoceras
Qualifier: gn
Author: Ruan 1988 (nom.nud.)
Valid: Ruanites Yatskov 1990
Lower Boundary: CNG Tangdin Fm. base, 406.4 million years
Upper Boundary: CNG Tangdin Fm.--Lower Tangxiang Fm., 405.8 million years