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TaxNo: 2267Cravenoceras shimanskyi
Suborder: Goniatitina
Superfamily: Neoglyphioceratoidea
Family: Cravenoceratidae
Subfamily: Cravenoceratinae
Genus: Cravenoceras
Species: shimanskyi
Qualifier: ss
Author: Ruzhencev & Bog. 1971,p.257
Lower Boundary: RUS Nm1a2--Nm1b1,Uralopron.-Cravenoc. GZ, 326.4 million years
Upper Boundary: RUS Nm1b1--Nm1b2 (Domb.carinat.--tectus), 324.6 million years