|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Strophomenata - Strophomenida - Strophomenidae
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.
|C. M. O. Rasmussen et al. 2012||Shell large, concavo-convex, wider than long, with subcircular outline. Interareas low, wide. Delthyrium high, moderately wide, covered completely by dental plates. Notothyrium wide, partly covered by apical chilidium. Ornamentation consists of 10–11 simple costae. Cardinal process bifid. Dorsal median septum surrounded by a complex arrangement of side septa and transverse ridges on a bemalike structure.|