Cleionychia Ulrich 1892 (clam)

Bivalvia - Myalinida - Ambonychiidae

Alternative spelling: Clionychia

Synonym: Anoptera Ulrich 1893

Full reference: E. O. Ulrich. 1892. New Lammelibranchiata, No. 4. Descriptions of one new genus and eight new species. American Geologist 10(2):96-104

Parent taxon: Ambonychiidae according to H. E. Vokes 1980

See also Cox et al. 1969, Pojeta 1966, Raymond 1916, Sepkoski 2002, Soot-Ryen and Soot-Ryen 1960 and Toni 1975

Sister taxa: Allonychia, Ambonychia, Ambonychinia, Ambonychiopsis, Amphicoelia, Amphiocoelia, Anomalocoelia, Anomalodonta, Byssopteria, Claudeonychia, Elasmodophora, Fasciculiptera, Glyptonychia, Gosseletia, Leconychia, Lophonychia, Maryonychia, Mytilarca, Notonychia, Opisthoptera, Paramytilarca, Praeanomalodonta, Psilonychia, Pteronychia, Silurinka, Xinshaophorus

Subtaxa: Anoptera angusta Anoptera miseneri Cleionychia attenuata Cleionychia corrugata Cleionychia crebra Cleionychia crispa Cleionychia curta Cleionychia excavata Cleionychia gibbosa Cleionychia lamellosa Cleionychia marginalis Cleionychia montrealensis Cleionychia mytiloides Cleionychia ottawaensis Cleionychia oviformis Cleionychia primitiva Cleionychia pulchella Cleionychia subundata Cleionychia superba Cleionychia traingularis Clionychia curta Clionychia rhomboidea Clionychia undata

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Type: Ambonychia lamellosa

Ecology: stationary epifaunal suspension feeder

Distribution:

• Silurian of Canada (1: Ontario collection), United States (5: New York)

• Ordovician of Argentina (1), Canada (5: Ontario, Quebec, Québec), North Korea (1), Norway (15), Sweden (5), the United Kingdom (3), United States (20: Illinois, Iowa, Kentucky, Minnesota, Minnesota, Illinois, Iowa, Minnesota, Wisconsin, Illinois, Ohio)

• Chazy of Canada (3: Quebec), United States (18: New York)

Total: 77 collections including 81 occurrences

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