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TaxNo: 6349Family Xinjiangoceratidae
Suborder: Goniatitina
Superfamily: Popanoceratoidea
Family: Xinjiangoceratidae
Qualifier: fy
Author: Wang 1983,p.532
Valid: Proptychitidae Waagen
Lower Boundary: Permian--Triassic (Induan base), 251 million years
Upper Boundary: Olenekian--Anisian (top Spathian), 245 million years