Kingdom Animalia Class Gastropoda Clade †Cyrtoneritimorpha | Phylum Mollusca Clade Neritimorpha Rank Order | |
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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
Cyrtoneritimorpha Wikipedia(Text) CC BY-SA