|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Gastropoda - Neogastropoda - Perissityidae
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.
|W. P. Popenoe and L. R. Saul 1987||Plumply bucciniform gastropods of small to medium size which have a rounded to doubly subangulate whorl profile. Whorls are ornamented by spiral ribs, two of which predominate, and short axial ribs. Outer lip expanded to form a rim which is thickened at its edge and has posterior, medial, and anterior denticles within. Parietal lip is roundly expanded. Columella has two folds. Anterior canal is moderately long, slightly curved, and has a fasciole near its tip.|