|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
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.
|L. R. Saul and R. L. Squires 2003||Shell high-spired cerithiform, upper spire with six-sided (possibly five-sided) pyramidal shape formed by align- ment of strong axial ribs; rest of teleoconch with more numerous, but unaligned, axial ribs; spiral ribbing, of variable strength, over entire shell; aperture rimmed, nearly round, with expanded, flat- tened varix on the outer lip, and moderately long, tube-like an- terior canal.|