|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Ostracoda - Palaeocopida - Drepanellidae
It was assigned to Beyrichiidae by Harlton (1933); to Aechminellidae by Benson et al. (1961); to Nodellinae by Khivintseva (1969); and to Palaeocopida 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.