|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Strophomenata - Productida - Productidae
It was reranked as Productus (Horridonia) by Frebold (1942).
It was assigned to Productus by Frebold (1942); to Horridoniini by Williams et al. (2000); to Strophomenida by Sepkoski (2002); and to Horridoniina by Lazarev (2005).
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.