Raphistomatidae

Raphistomatidae
Temporal range: U Cambrian - M Permian
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Archaeogastropoda
Superfamily: Euomphaloidea
Family: Raphistomatidae
Koken, 1896
Subfamilies

See text

Synonyms

Ceratopeidae Yochelson & Bridge, 1957

The †Raphistomatidae is a taxonomic family of fossil sea snails, Paleozoic marine gastropod mollusks. This family was established by Koken in 1896. This family is found in the fossil record from the Upper Cambrian to the Middle Permian.

Description

The shells of the snails in this family are lenticular, turbiniform, and stepped, with a short slit, notch, or sinus on the aperture lip that generally results in a selenizone.

Subfamilies

J. Brooks Knight, et al.[1] in the Treatise Part 1, 1960, included the Raphistomatidae in the Pleurotomariacea and subdivided the family into four subfamilies described herein.

Jeffery, 2003,[2] included the Raphistomatidae in the Euomphaloidea (=Euomphalacea). The subfamilies Opheletinae and Raphistomatinae are retained, but the Lionsprinae and Omospirinae have be reassigned to the Eotomaridae and Loxonematidae, respectively.

In the perspective of Bouchet and Rocroi, 2005 [3] the Raphistomatidae is simply included in "Basal taxa that are certainly Gastropoda" without assigning it to any higher taxa.

References

  1. Treatise on Invertebrate Paleontology Part I, R.C. Moore (ed) Geol Soc of America and Univ. Kansas Press, 1960.
  2. P. Jeffery, 2003. GastroClass: Gastropod Classification Website
  3. Bouchet, P. & Rocroi, J.-P. 2005. Classification and Nomenclator of Gastropod Families. Malacologia V 47, n. 1-2


This article is issued from Wikipedia - version of the Friday, April 01, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.