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TaxNo: 6450Cravenoceras? xiaoyuchanense
Suborder: Goniatitina
Superfamily: Neoglyphioceratoidea
Family: Cravenoceratidae
Subfamily: Cravenoceratinae
Genus: Cravenoceras?
Species: xiaoyuchanense
Qualifier: sn
Author: Yang 1987,p.159
Lower Boundary: Serpukhovian--Bashkirian [SPK--BSH], 318.1 million years
Upper Boundary: Bashkirian--Moscovian [BSH--MOS], 311.7 million years