|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Cephalopoda - Ammonitida - Oppeliidae
It was reranked as Aconeceras (Gyaloceras) by Wright et al. (1996).
It was assigned to Aconeceratidae by Whitehouse (1927); to Aconeceratinae by Arkell et al. (1957); to Aconeceras by Wright et al. (1996); 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.