|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Cephalopoda - Nautilida - Grypoceratidae
It was reranked as Plummeroceras by Teichert et al. (1964) and Sepkoski (2002).
It was assigned to Grypoceras by Kummel (1953); to Grypoceratidae by Teichert et al. (1964); and to Nautilida 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.