|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Cephalopoda - Ammonitida - Oppeliidae
It was reranked as Trimarginites by Arkell et al. (1957), Sepkoski (2002) and Parent (2006).
It was assigned to Oppelia by Rollier (1909); to Ochetoceratinae by Arkell et al. (1957); to Ammonoidea by Sepkoski (2002); and to Glochiceratinae by Parent (2006).
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.