Cephalopoda - Protactinoceratida

Alternative spelling: Protactinocerida

Parent taxon: Plectronoceratia according to A. H. King and D. H. Evans 2019

See also Crick 1981 and Sepkoski 2002

Sister taxon: Plectronoceratida

Subtaxa: Benxioceras Mastoceras Protactinoceratidae

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Distribution: found only at Wan-wan-kou dolomite at Wan-wan-kou valley in the Niuhsintai basin ( of South Korea)

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