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Exogyra
Taxonomy
Exogyra was named by Say (1820) [Sepkoski's age data: J Kimm K Maes-u Sepkoski's reference number: 93]. It is not extant.
It was reranked as Ostrea (Exogyra) by Lees (1928).
It was assigned to Ostreidae by Bohm (1926); to Ostrea by Lees (1928); to Pterioida by Sepkoski (2002); and to Exogyrinae by Vokes (1980), Bouchet et al. (2010) and Mendir et al. (2021).
It was reranked as Ostrea (Exogyra) by Lees (1928).
It was assigned to Ostreidae by Bohm (1926); to Ostrea by Lees (1928); to Pterioida by Sepkoski (2002); and to Exogyrinae by Vokes (1980), Bouchet et al. (2010) and Mendir et al. (2021).
Species
E. (Aetostreon), E. (Costagyra), E. (Exogyra), E. africana, E. americana, E. auriformis, E. californica, E. conica, E. contorta, E. davidsoni, E. ganhamoroba, E. griepenkerli, E. inornata, E. lancha, E. miotaurinensis, E. mutatoria, E. ostracina (syn. Chama cornu arietis), E. overwegi (syn. Ostrea (Exogyra) overwegi, Ostrea fourneti, E. decussata, Ostrea decussata, E. matheroniana), E. quitmanensis, E. reedi, E. scheibei, E. sergipensis, E. solea, E. tamaulipana, E. upatoiensis, E. wetzleri, E. woolmani, E. yabei
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1820 | Exogyra Say |
| 1926 | Exogyra Bohm p. 59 |
| 1928 | Ostrea (Exogyra) Lees |
| 1980 | Exogyra Vokes p. 64 |
| 2002 | Exogyra Sepkoski |
| 2010 | Exogyra Bouchet et al. |
| 2021 | Exogyra Mendir et al. p. 7 |
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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. †Exogyra Say 1820
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Subg. †Exogyra (Aetostreon) Bayle 1878
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†Aetostreon latissimum Lamarck 1801
†Aetostreon neocomiensis d'Orbigny 1851
Subg. †Exogyra (Costagyra) Vialov 1936
†Exogyra africana Lamarck 1801
†Exogyra americana Marcou 1858
†Exogyra auriformis von Koenen 1897
†Exogyra californica Packard 1922
†Exogyra conica Sowerby 1813
†Exogyra contorta Eichwald 1868
†Exogyra davidsoni Whidborne 1883
†Exogyra ganhamoroba Maury 1936
†Exogyra griepenkerli Böhm 1891
†Exogyra inornata Packard 1922
†Exogyra lancha Stoyanow 1949
†Exogyra miotaurinensis Sacco 1897
†Exogyra mutatoria White 1887
†Exogyra ostracina Lamarck 1801
†Exogyra overwegi von Buch 1852
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Invalid names: Exogyra decussata Goldfuss 1834 [synonym], Exogyra matheroniana Orbigny 1923 [synonym], Ostrea (Exogyra) overwegi Buch 1953 [synonym], Ostrea fourneti Coquand 1862 [synonym]
†Exogyra quitmanensis Cragin 1893
†Exogyra reedi Imlay 1937
†Exogyra scheibei Bohm 1926
†Exogyra sergipensis Maury 1936
†Exogyra solea Müller 1900
†Exogyra tamaulipana Imlay 1937
†Exogyra upatoiensis Stephenson 1914
†Exogyra wetzleri Boehm 1882
†Exogyra woolmani Richards 1947
†Exogyra yabei Nagao 1934
Invalid names: Chama cornu arietis Nilsson 1827 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Steuber 2002, Kiessling 2004 | |||||
Age range: base of the Sinemurian to the top of the Tortonian or 199.30000 to 7.24600 Ma
Collections (891 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Jurassic | Chile (Región de Tarapacá) | E. sp. (228250) | |
| Early/Lower Hettangian | France | E. sp. (39215) | |
| Planorbis | France | E. sp. (39381) | |
| Sinemurian | Chile | E. sp. (7415 7425) | |
| Late/Upper Sinemurian | Chile | E. sp. A (32443) Expgyra sp. (95547) | |
| Pliensbachian | Spain | E. sp. (211864 211866 211869) | |
| Late/Upper Pliensbachian | Chile | Expgyra sp. (95553) | |
| Bathonian - Bajocian | Somalia | E. davidsoni (161481) | |
| Bathonian | United Kingdom | E. sp. (37509) | |
| Late/Upper Bathonian - Early/Lower Callovian | Afghanistan | E. crassa (85947) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Selandian | Denmark | E. canaliculata (35263 35264 35265 35266 35267) | |
| Ypresian | France | Ostrea eversa, Ostrea boussaci (59788 59789) | |
| Lutetian | Libya | E. exogyroides (42128) | |
| Lutetian | Libya (Ajdabiya) | E. exogyroides (42129) | |
| Priabonian | Namibia (Sperrgebiet) | E. scheibei (149316) | |
| Priabonian | Libya | E. exogyroides, E. maradensis (42144) | |
| Priabonian | Egypt | E. faasi (79700) | |
| Late/Upper Eocene | Egypt | E. sp. (40516) | |
| Early/Lower Miocene | Somalia | E. miotaurinensis (78830 78953) | |
| Tortonian | Cyprus | E. sp. (34690 71885) | |