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TaxNo: 4820Genus Alaoceras
Suborder: Goniatitina
Superfamily: Neoglyphioceratoidea
Family: Cravenoceratidae
Subfamily: Cravenoceratinae
Genus: Alaoceras
Qualifier: ge
Author: Ruzhentsev & Bog. 1971,p.250
Lower Boundary: RUS Nm1a1--Nm1a2 (P.cloudi--Do.miranda), 327.4 million years
Upper Boundary: RUS Nm1b1--Nm1b2 (Domb.carinat.--tectus), 324.6 million years