|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Rhynchonellata - Thecideida - Bactryniidae
It was reranked as Thecidea (Davidsonella) by Rollier (1915).
It was assigned to Thecidea by Rollier (1915); to Thecideida by Sepkoski (2002); and to Davidsonellinae 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.