|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Rhynchonellata - Spiriferinida - Bittnerulidae
It was assigned to Cyrtinidae by Chorowicz and Termier (1975); to Spiriferida by Sepkoski (2002); and to Hirsutellinae by Williams et al. (2006).
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.