Cyrtoneritimorpha

Cyrtoneritimorpha is a clade of fossil sea snails, marine gastropod mollusks within the clade Neritimorpha.

Cyrtoneritimorpha
Temporal range: Early Ordovician–Late Permian[1]
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Neritimorpha
Clade: †Cyrtoneritimorpha
Families

Orthonychiidae
Vltaviellidae

This order contains two extinct families: Orthonychiidae and Vltaviellidae.

References
  1. 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


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