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Taxonomy
Cyrena was named by Lamarck.
It was assigned to Cyrenidae by Clark and Arnold (1923), Nagao (1928), Nagao (1928), Bouchet et al. (2010).
It was assigned to Cyrenidae by Clark and Arnold (1923), Nagao (1928), Nagao (1928), Bouchet et al. (2010).
Species
Species lacking formal opinion data
C. acuta, C. albertensis, C. anomala, C. arnouldi, C. brongniarti, C. brongniarti, C. convexa, C. convexa, C. convexa, C. cretatcea, C. cuneiformis, C. cycladiformis, C. deperdita, C. floridana, C. forbesi, C. garumnica, C. gibbosula, C. huarazensis, C. intermedia, C. laletana, C. media, C. obliquata, C. obovata, C. obtusa, C. pisum, C. pompholyx, C. pulchara, C. pulchra, C. securis, C. sirena, C. sirena, C. sirena, C. sirena, C. solitaria, C. suborbicularis, C. subtrigonalis, C. tellinella, C. valdensis
Synonymy list
| Year | Name and author |
|---|---|
| 1923 | Cyrene Clark and Arnold p. 148 |
| 1928 | Cyrena Nagao p. 52 |
| 2010 | Cyrena Bouchet et al. |
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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. †Cyrena Lamarck
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†Cyrena abbreviata Deshayes 1857
Cyrena californica Gabb 1866
†Cyrena cardioides Deshayes 1857
Cyrena caroliniensis Bosc 1807
Cyrena consobrina Cailland 1823
Cyrena difficilis Deshayes 1860
†Cyrena distincta Deshayes 1857
†Cyrena dutemplei Deshayes 1857
†Cyrena gravesi Deshayes 1824
†Cyrena incompta Deshayes 1857
†Cyrena lamberti Deshayes 1857
†Cyrena marylandica Clark 1911
†Cyrena mirabilis Nagao 1928
†Cyrena nobilis Deshayes 1857
†Cyrena rhaetica Lepsius 1878
†Cyrena saincenyensis Deshayes 1857
†Cyrena veneriformis Deshayes 1857
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range
Maximum range based only on fossils: base of the Rhaetian to the top of the Early/Lower Pleistocene or 205.70000 to 0.77400 Ma
Minimum age of oldest fossil (stem group age): 201.4 Ma
Minimum age of oldest fossil (stem group age): 201.4 Ma
Collections (99 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Rhaetian | Italy (Trento) | C. rhaetica (232117 232118 232119) | |
| Pliensbachian | Greenland | C. sp. (161981) | |
| Kimmeridgian | Tanzania | C. sp. (79253) | |
| Tithonian | United Kingdom (England) | C. media (100655) | |
| Early/Lower Cretaceous | China (Sichuan) | C. sp. (71789) | |
| Early/Lower Cretaceous | Spain (Castilla y Leon) | C. sp. (64406) | |
| Late/Upper Berriasian | Germany (Nordrhein-Westfalen) | C. sp. (45760) | |
| Late/Upper Berriasian - Valanginian | United Kingdom (England) | C. sp. (170624) | |
| Early/Lower Valanginian | United Kingdom (England) | C. sp. (160833) | |
| Valanginian | Peru (Ancash) | C. huarazensis (56944) | |
| Late/Upper Barremian - Early/Lower Aptian | United Kingdom (England) | C. sp. (24897) | |
| Late/Upper Aptian | USA (Maryland) | C. marylandica (232239) | |
| Cenomanian | Canada (British Columbia) | C. albertensis (87450) | |
| Middle Turonian | Canada (British Columbia) | C. albertensis (87444) | |
| Middle Turonian | USA (New Mexico) | C. securis, C. sp. (88641) | |
| Early/Lower Santonian | Poland | C. cretatcea (179488) | |
| Campanian - Early/Lower Maastrichtian | France (Haute-Garonne) | C. garumnica (13217) | |
| Early/Lower Maastrichtian | Austria (Lower Austria) | C. solitaria (226428) | |
| Early/Lower Maastrichtian | Spain (Cataluña) | C. laletana (169881) C. sp. (141185 183660) | |
| Late/Upper Maastrichtian | France (Haute-Garonne) | C. garumnica (48865) | |
| Danian | Poland | C. arnouldi, C. forbesi, C. veneriformis (27625) | |
| Danian | Austria (Niederösterreich) | C. suborbicularis (87001) | |
| Ypresian | United Kingdom (England) | C. cuneiformis, C. tellinella (38868) | |
| Bartonian | United Kingdom (England) | C. gibbosula (42648) C. sp. (39892) | |
| Bartonian | France (Oise) | C. deperdita (3494) | |
| Late/Upper Eocene | United Kingdom (England) | C. cycladiformis (39838 40887) C. cycladiformis, C. obovata, C. pulchra (39662) C. gibbosula, C. deperdita (42649) C. obovata (39676 39695 39704 40297 40377 40387 40420 40423 40441 40770 40771 40890 40893 40909 40919 40920 40923 40926 40929) C. obovata, C. cuneiformis (39674 39705 40769) C. obtusa (40916 40928) C. pulchara, C. obtusa (40927) C. sp. (39675 39694 40101 40296 40381 40385 40862 40924) | |
| Late/Upper Eocene | Greenland | C. difficilis (88292) C. gravesi (88289) | |
| Late/Upper Eocene | Colombia | C. sp. (42790) | |
| Late/Upper Eocene | United Kingdom | C. obovata (40772) | |
| Priabonian | Romania | C. incompta (102026) | |
| Priabonian | United Kingdom (England) | C. deperdita, C. obliquata, C. cycladiformis, C. pisum (39643) | |
| Priabonian | Italy | C. sp. (78617) | |
| Priabonian | Bulgaria (Sliven) | C. sirena (103768) | |
| Rupelian | Romania | C. brongniarti (102029) C. convexa (102021 102023 102027) C. convexa, C. brongniarti (101971 101972) C. convexa, C. brongniarti, C. incompta (187379) C. convexa, C. intermedia (102022) | |
| Oligocene | Bulgaria (Varna) | C. valdensis (103737) | |
| Chattian - Aquitanian | USA (Georgia) | C. floridana (61130) | |
| Chattian - Aquitanian | USA (Florida) | C. floridana (61045 61070 61096 61107 61108 61111 61126) C. pompholyx (61051 61103) C. pompholyx, C. floridana (60985) | |
| Late/Upper Miocene | USA (California) | C. californica (216865) | |
| Early/Lower Pleistocene | Panama | C. acuta (80307) | |
| Pleistocene | Peru | C. anomala (207005) | |
| Pleistocene | United Kingdom (England) | C. consobrina (84833) |