|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Gastropoda - Rissoidae
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. F. Ponder 1984||Shell minute, elongate, with axial ribs, non-umbilicate. Aperture oval, weakly channelled posterioriy, with thick external varix (Fig. 108E). Protoconch relatively large, dome-shaped, of about 1 Vz whorls, sculptured with several smooth, spiral carinae (Fig. 108F).|