|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Strophomenata - Strophomenida - Glyptomenidae
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.
|J. K. Pope 1982||Multicostellate. Pseudodeltidium uniformly arched, not carinate. Ventral valve smoothly convex, not folded. Dental plates short; diductor muscle scar not bordered by long thin plates.|