Anomia (bivalve)
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Anomia Bivalve

Anomia
Temporal range: Late Permian to Holocene
265-0 Ma
Anomia ephippium.jpg
Two upper valves of A. ephippium
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Pectinida
Family: Anomiidae
Genus: Anomia
Linnaeus, 1758
Species
  • A. ephippium Linné, 1758 type = A. caepa
  • A. achaeus Gray, 1850 = A. sol
  • A. chinensis Philippi, 1849
  • A. colombiana
  • A. cytaeum Gray, 1850
  • A. macostata Huber, 2010
  • A. peruviana d'Orbigny, 1846 = A. laqueata
  • A. simplex d'Orbigny, 1853
  • A. trigonopsis Hutton, 1877
  • A. vancouverensis Gabb, 1869 Cretaceous[1]
Synonyms

Anomia is a genus of saltwater clams, marine bivalve mollusks in the family Anomiidae. They are commonly known as jingle shells because when a handful of them are shaken they make a jingling sound,[2] though some are also known as saddle oysters.[3]

This genus first appeared in the Permian period of China, Italy, and Pakistan.[4]Anomia species are common in both tropical and temperate oceans and live primarily attached to rock or other shells via a calcified byssus that extends through the lower valve.[1]Anomia shells tend to take on the surface shape of what they are attached to; thus if an Anomia is attached to a scallop shell, the shell of the Anomia will also show ribbing.[1] The species A. colombiana has been found in the La Frontera Formation of Boyacá, Cundinamarca and Huila of Colombia.[5]

Reassigned species

As Anomia was erected very early in paleontology, several species have been reassigned; most of them are now recognized as brachiopods.[6][7]

References

  1. ^ a b c Ludvigsen, Rolf & Beard, Graham. 1997. West Coast Fossils: A Guide to the Ancient Life of Vancouver Island. pg. 109
  2. ^ Gofas, S. (2010) Anomia Linnaeus, 1758. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.eu/aphia.php?p=taxdetails&id=137650 Archived 2016-03-04 at the Wayback Machine on 2010-06-06
  3. ^ "Saddle oyster - Anomia ephippium". The Marine Life Information Network.
  4. ^ Paleobiology database entry on Anomia
  5. ^ Patarroyo, Pedro (2016). "Amonoideos y otros macrofósiles del lectoestratotipo de la Formación la Frontera, Turoniano inferior - medio (Cretácico Superior) en San Francisco, Cundinamarca (Colombia)" (PDF). Boletín de Geología, Universidad Industrial de Santander. 38: 41. Retrieved .
  6. ^ Moore, R.C., ed. (1965). Brachiopoda. Treatise on Invertebrate Paleontology. Part H., Volume 1 and 2. Boulder, Colorado/Lawrence, Kansas: Geological Society of America/University of Kansas Press. ISBN 0-8137-3015-5.
  7. ^ Moore, R.C.Paleontological Institute (ed.). Part N, Mollusca 6, vol. 1 & 2. Treatise on Invertebrate Paleontology. Archived from the original on 9 October 2016. Retrieved 2013.



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Anomia_(bivalve)
 



 



 
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