Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Gastropoda
Subclassis: Neritimorpha
Ordo: † Cyrtoneritida
Familiae (2): †Orthonychiidae – †Vltaviellidae
Name
† Cyrtoneritida
Synonyms
Cyrtoneritimorpha †
References
Links
Cyrtoneritida in the World Register of Marine Species
Cyrtoneritimorpha is a clade of fossil sea snails, marine gastropod mollusks within the clade Neritimorpha.
This order contains two extinct families: Orthonychiidae and Vltaviellidae.
References
Frýda, J. (1999). Higher classification of Paleozoic gastropods inferred from their early shell ontogeny. Journal of the Czech Geological Society, 44(1-2), 137–154. Retrieved from http://www.jgeosci.org/index.php?pg=detail&ID=JCGS.781
The Paleobiology Database
Retrieved from "http://en.wikipedia.org/"
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