|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Rhynchonellata - Orthida - Glyptorthidae
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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.
|D. F. Wright and A. L. Stigall 2014||Shell size moderate (character 1, width 10.87–18.78 mm), outline subquadrate; slightly wider than long. Ornamentation strongly lamellose; costal density low to moderate. Valves dorsibiconvex to ventribiconvex in lateral profile. Ventral muscle scars large, deflecting anteriorly and laterally. Ventral umbonal area extending significantly over the hinge line, angle less than 140. Brachiophores small. Dorsal muscle scars large and rectangular, wider than long.|