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TaxNo: 3577Altudoceras guanshanense
Suborder: Goniatitina
Superfamily: Neoicoceratoidea
Family: Paragastrioceratidae
Subfamily: Pseudogastrioceratinae
Genus: Altudoceras
Species: guanshanense
Qualifier: ss
Author: Zheng 1984,p.189
Lower Boundary: Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
Upper Boundary: Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years