|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Rhynchonellata - Pentamerida - Virgianidae
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.
|T. W. Amsden 1974||This genus comprises virgianids with small, smooth shells having a ventral sulcus and a dorsal fold. The dorsal apparatus consists of noncarinate, narrow, flattened processes overlain by inner plates and supported on very short, discrete outer plates (text-fig. 37). The ventral interior has a small spondylium supported on a short septum.|