|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
It was assigned to Trigonirhynchiidae by Cooper and Dutro (1982); to Rhynchonellida by Sepkoski (2002); and to Trigonirhynchiinae 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.
|G. A. Cooper and J. T. Dutro 1982||Medium-sized rhynchonellid having subrectangular outline, smooth umbones, costate shell uniplicate with closely-spaced dental plates and small, narrow septalium partially covered by a posteriorly perforate inner hinge plate.|