Orthonychiidae
Temporal range: Mid Ordovician–Devonian[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Superfamily: †Platyceratoidea
Family: †Orthonychiidae
Bandel & Frýda, 1999

†Orthonychiidae is an extinct taxonomic family of fossil sea snails, marine, gastropod mollusks in the clade Cyrtoneritimorpha.[2]

There is an unusually great degree of variability within the shells of species in the genus Orthonychia,[1] but an analysis of this variability has not been done yet (2008).[1]

Genera

Genus Orthonychia Hall, 1843[3]

References

  1. ^ a b c d Frýda, J.; Racheboeuf, P. R.; Frýdová, B. (2008). "Mode of life of Early Devonian Orthonychia protei (Neritimorpha, Gastropoda) inferred from its post-larval shell ontogeny and muscle scars". Bulletin of Geosciences: 491–502. doi:10.3140/bull.geosci.2008.04.491.
  2. ^ Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. 47 (1–2). Hackenheim, Germany: ConchBooks: 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.
  3. ^ Hall J. (1843). "Geology of New York. Part IV, comprising the survey of the fourth geological district". Natural History of New York 4: 1-683.
  4. ^ "†Platyceras (Orthonychia) compressum Girty 1910 (snail)". Paleobiology Database, accessed 8 August 2010.
  5. ^ "†Platyceras (Orthonychia) ungula Weller 1906 (snail)". Paleobiology Database, accessed 8 August 2010.


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