Raphistomatidae | |
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Family: | †Raphistomatidae Koken, 1896
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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.
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.
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 been 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.