Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy   Age range and collections

Hillites

Gastropoda - Neogastropoda - Sarganidae

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).

Synonymy list
YearName and author
1952Hillites Stephenson p. 181
2002Hillites Sepkoski, Jr.
2012Hillites Bandel and Dockery p. 99

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classGastropodaCuvier 1797
subclassProsobranchiaMilne-Edwards 1848
superorderCaenogastropodaCox 1959
orderNeogastropodaThiele 1929
familySarganidaeStephenson 1923
subfamilySchizobasinaeBandel and Dockery 2001
genusHillites

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.

Diagnosis
ReferenceDiagnosis
L. W. Stephenson 1952The 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.