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TaxNo: 7234Genus Spirosporadoceras
Suborder: Tornoceratina
Superfamily: Praeglyphioceratoidea
Family: Sporadoceratidae
Subfamily: Sporadoceratinae
Genus: Spirosporadoceras
Qualifier: ge
Author: Becker 2010,p.152
Lower Boundary: UD6C2--UD6D1:parad.--Wo.sphaeroi.[18,90], 361.6 million years
Upper Boundary: UD6D1--UD6D2:Wo.sphaer.--Epiwo.applanata, 360.8 million years