|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Rhynchonellata - Rhynchonellida - Leiorhynchidae
It was reranked as Leiorhynchus (Properotundirostrum) by Johnson and Klapper (1990).
It was assigned to Leiorhynchus by Johnson and Klapper (1990); to Rhynchonellida by Sepkoski (2002); and to Leiorhynchinae by Williams et al. (2002).
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.