| Calliostomatidae | |
|---|---|
 | |
| An apertural view of a shell of Maurea selecta | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Calliostomatidae Thiele, 1924 (1847) |
| Genera and species | |
See text | |
Calliostomatidae is a family of sea snails within the superfamily Trochoidea and the clade Vetigastropoda. [1]
The Calliostomatidae are unusually diverse. They are characterized by a stepped spire and a pointy aperture. They may possess or lack an umbilicus. The collumella is sometimes thicker, partially covering the aperture. The spiral whorls can differ between narrow and robust. They inhabit a wide range of ocean habitats, from the intertidal zone to mid-bathyal depths.
This taxon was long considered to be a subfamily of the Trochidae.
This family consists of two following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005): [2]
According to Williams et al. (2008) [3] the Calliostomatidae stays in Trochoidea. Up to 2008 there were only two species Calliostoma javanicum and Calliostoma unicum that were used in molecular phylogeny studies. [3]
The first molecular phylogeny study of the family Calliostomatidae was made by Williams et al. (2010) [4] Based on molecular data, they confirmed that Thysanodontinae Marshall, 1988 belongs to the family Calliostomatidae,. [4] It was already previously placed there based on morphological data. [4]
The tribe Fautricini B. A. Marshall, 1995 was raised to the rank of subfamily Fautricinae B. A. Marshall, 1995 [5]
Genera included in this family: [6]
