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Hillites
Taxonomy
Hillites was named by Stephenson (1952) [Sepkoski's age data: K Albi-u].
It was assigned to Sarganidae by Stephenson (1952); to Neogastropoda by Sepkoski (2002); and to Schizobasinae by Bandel and Dockery (2012).
It was assigned to Sarganidae by Stephenson (1952); to Neogastropoda by Sepkoski (2002); and to Schizobasinae by Bandel and Dockery (2012).
Synonymy list
| Year | Name and author |
|---|---|
| 1952 | Hillites Stephenson p. 181 |
| 2002 | Hillites Sepkoski |
| 2012 | Hillites Bandel and Dockery p. 99 |
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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.
G. †Hillites Stephenson 1952
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. W. Stephenson 1952 | The features determining the genus Hillites include a low, subdomelike spire, a subglobose form, a low turbinate protoconch coiled about 1lh turns, an open, flaring umbilicus, a ridge of callus bordering the lower side of the shallow anal canal at the posterior angulation of the aperture, a deep, narrow, twisted siphonal canal, and a ridge of callus at the upper edge of this canal near the anterior end of the inner lip. The canal is formed by a sharp infolding of the peristome, the fold being orientated in such a way that the shell serves as the outer wall of the umbilicus. The outer surface of the shell is ·ornamented with spiral lirae and with numerous, closely packed, sinuous axial or growth ridges, which form quadrangular nodes at the intersections with the spiral ribs. |