|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Rhynchonellata - Spiriferida - Spiriferidae
It was reranked as Purdonella by Sepkoski (2002) and Williams et al. (2006).
It was assigned to Spirifer by Reed (1944); to Spiriferida by Sepkoski (2002); and to Purdonellinae 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.