|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Cephalopoda - Ammonitida - Sphenodiscidae
It was assigned to Ammonoidea by Sepkoski (2002); and to Sphenodiscidae by Zaborski (1985), Kennedy (1986), Kennedy and Cobban (1996), Kennedy et al. (1996), Kennedy et al. (1997) and Landman and Cobban (2003).
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