|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Helcionelloida - Helcionellida - Yochelcionellidae
It was assigned to Cyrtonellida by Bengtson (1992); to Helcionelloida by Sepkoski (2002); to Helcionellidae by Gubanov et al. (2004); and to Yochelcionellidae by Runnegar and Jell (1976), Missarzhevsky (1989), Parkhaev (2002) and Wagner (2020).
Is something missing? Join the Paleobiology Database and enter the data
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.