|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Cephalopoda - Ammonitida - Sphaeroceratidae
It was assigned to Macrocephalitidae by Imlay (1953) and Arkell et al. (1957); to Eurycephalitinae by Arthur et al. (1993) and Parent (1998); and to Ammonoidea by Sepkoski (2002).
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.