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Taxonomy
Chama was named by Linnaeus (1758) [Sepkoski's age data: K Camp R]. It is extant. Its type is Chama lazarus.
It was assigned to Veneroida by Sepkoski (2002); and to Chamidae by Glenn (1904), Woodring (1925), Vokes (1980), Woodring (1982), Dockery (1982), Ward and Blackwelder (1987), Squires (1987), Moore (1988), Freneix et al. (1988), Beu et al. (1990), Ward (1992), Lamprell and Whitehead (1992), Beu (2006), Bouchet et al. (2010) and Coan and Valentich-Scott (2012).
It was assigned to Veneroida by Sepkoski (2002); and to Chamidae by Glenn (1904), Woodring (1925), Vokes (1980), Woodring (1982), Dockery (1982), Ward and Blackwelder (1987), Squires (1987), Moore (1988), Freneix et al. (1988), Beu et al. (1990), Ward (1992), Lamprell and Whitehead (1992), Beu (2006), Bouchet et al. (2010) and Coan and Valentich-Scott (2012).
Species
C. (Chama), C. (Cipliacella), C. (Psilopus), C. aculeata, C. arcana, C. asperella, C. aspersa, C. berjadinensis, C. bezanconi, C. brassica, C. calcarata, C. callipona, C. canaliculata, C. chipolana, C. congregata (syn. C. congregatoides), C. cornu, C. corrugata, C. corticosaformis, C. eudeila, C. exogyra, C. fimbriata, C. florida, C. fragum, C. frondosa, C. granti, C. grunskyi (syn. C. pacifica), C. gryphoides, C. huttoni, C. involuta, C. janus, C. lamellifera, C. lazarus (type species), C. limbula (syn. C. iostoma), C. macerophylla (syn. C. imbricata), C. monroensis, C. nejdensis, C. oblongum, C. pacifica, C. pellucida, C. piruensis, C. pittensis, C. pulchella, C. radians, C. radiata, C. reflexa, C. ruderalis, C. scheibei, C. sinuosa, C. squamuligera, C. strepta
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1758 | Chama Linnaeus p. 691 |
| 1904 | Chama Glenn p. 342 |
| 1925 | Chama Woodring p. 102 |
| 1980 | Chama Vokes p. 108 |
| 1982 | Chama Dockery p. 61 |
| 1982 | Chama Woodring p. 629 |
| 1987 | Chama Squires p. 62 |
| 1987 | Chama Ward and Blackwelder p. 130 |
| 1988 | Chama Freneix et al. p. 420 |
| 1988 | Chama Moore p. D30 |
| 1990 | Chama Beu et al. p. 397 |
| 1992 | Chama Lamprell and Whitehead p. 50 |
| 1992 | Chama Ward p. 81 |
| 2002 | Chama Sepkoski |
| 2006 | Chama Beu p. 215 |
| 2010 | Chama Bouchet et al. |
| 2012 | Chama Coan and Valentich-Scott p. 432 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. Chama Linnaeus 1758
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Subg. Chama (Chama) Linnaeus 1758
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Chama (Chama) echinata Broderip 1835
†Chama (Chama) pappiladerma Dockery 1982
Subg. †Chama (Cipliacella)
Chama aculeata Poli 1795
Chama arcana Bernard 1976
†Chama asperella Lamarck 1819
†Chama aspersa Reeve 1846
†Chama berjadinensis Hodson 1927
†Chama bezanconi Cossmann 1887
†Chama brassica Reeve 1847
†Chama calcarata Lamarck 1806
†Chama callipona Maury 1924
†Chama canaliculata Sowerby 1813
†Chama chipolana Dall 1903
†Chama cornu Nilsson 1827
Chama corrugata Broderip 1835
†Chama corticosaformis Weisbord 1929
†Chama eudeila Maury 1924
Chama exogyra Conrad 1837
†Chama fimbriata Defrance 1817
Chama florida Lamarck 1819
†Chama fragum Reeve 1847
Chama frondosa Broderip 1835
Chama frondosa mexicana Carpenter 1857
Chama granti Strong 1934
Chama gryphoides Linnaeus 1758
†Chama gryphoides gryphina Wood 1879
†Chama huttoni Hector 1886
†Chama involuta Guppy 1873
Chama janus Reeve 1847
†Chama lamellifera Tenison Woods 1877
Chama lazarus Linnaeus 1758
†Chama monroensis Aldrich 1903
†Chama nejdensis Abbass 1972
Chama oblongum Linnaeus 1758
†Chama pacifica Broderip 1834
Chama pellucida Broderip 1835
†Chama piruensis Squires 1987
†Chama pittensis Marwick 1928
Chama radians Lamarck 1819
†Chama radiata Dockery 1977
†Chama reflexa Reeve 1846
†Chama ruderalis Lamarck 1819
†Chama scheibei Anderson 1929
Chama sinuosa Broderip 1836
Chama squamuligera Pilsbry and Lowe 1932
†Chama strepta Woodring 1982
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range
Maximum range based only on fossils: base of the Late/Upper Barremian to the top of the Holocene or 130.00000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 125.45 Ma
Minimum age of oldest fossil (stem group age): 125.45 Ma
Collections (609 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Barremian | France (Drôme) | C. sp. (75576) | |
| Turonian - Early/Lower Coniacian | Angola | C. sp. (210891) | |
| Campanian | New Zealand (South Island) | C. sp. (101382) | |
| Haumurian | New Zealand (Canterbury) | C. sp. (101408 101409) | |
| Maastrichtian | Libya | C. cossmanni (1370) | |
| Maastrichtian | Pakistan (Baluchistan) | C. callosa (1384) | |
| Maastrichtian | Serbia and Montenegro | C. toeroeki (1380) | |
| Maastrichtian | Egypt | C. saharica (1363) | |
| Maastrichtian | Spain | C. coquandi, C. tartareui (1317) | |
| Maastrichtian | Iran | C. callosa (1383) | |
| Danian | France | C. sp., Cipliacella supracretacea (20816) | |
| Danian | Belgium | C. ancestralis (22931) C. ciplyensis, C. sp. (26879) | |
| Selandian | USA (Georgia) | C. gainesensis (92371) | |
| Ypresian | Spain | C. boriesi (71633) C. sp. (75353) | |
| Ypresian | USA (California) | C. piruensis (178752) | |
| Ypresian | France | C. turgidula (59789) | |
| Ypresian | USA (Texas) | C. taylorensis (7788 7789 83950 84337) | |
| Ypresian | Saudi Arabia (Ash Sharqiyah) | C. nejdensis (42459) | |
| Ypresian | Turkey (Yerkoy) | C. fimbriata (98010) | |
| Ypresian | India (Rajasthan) | C. brimonti (46999) | |