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TaxNo: 5953Family Darvasiceratidae
Suborder: Prolecanitina
Superfamily: Medlicottioidea
Family: Darvasiceratidae
Qualifier: fy
Author: Leonova 1990,p.104
Valid: Propinacoceratinae Plummer & Scott,1937 [TAX5925]
Lower Boundary: Sakmarian--Artinskian [SAK--ART], 284.4 million years
Upper Boundary: UTX Kungurian/Leonardian base, 275.6 million years