|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Cephalopoda - Ellesmerocerida - Ellesmeroceratidae
It was assigned to Robsonoceratidae by Ulrich and Foerste (1933); to Ellesmeroceratidae by Flower (1964); and to Ellesmerocerida 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.