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TaxNo: 5839Genus Aulacaganides
Suborder: Tornoceratina
Superfamily: Pseudohaloritoidea
Family: Pseudohaloritidae
Subfamily: Shouchangoceratinae
Genus: Aulacaganides
Qualifier: ge
Author: Zhou 1985,p.188
Lower Boundary: Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
Upper Boundary: Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years