|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Cephalopoda - Ellesmerocerida - Ellesmeroceratidae
It was assigned to Orthocerotidae by Ulrich et al. (1944); and to Ellesmeroceratidae by Flower (1964), Teichert et al. (1964), Kröger and Landing (2007) and Evans (2011).
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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.