|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
It was assigned to Rhynchonellida by Sepkoski (2002); to Trigonirhynchiidae by Bassett and Cocks (1974) and Musteikis and Modzalevskaya (2002); and to Trigonirhynchiinae by Jin and Chatterton (1997) and Williams et al. (2002).
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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.