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Taxonomy
Mactra falcata was named by Gould (1850) [DISTRIBUTION: Miocene-Recent; British Columbia-Mexico.]. It is extant.
It was recombined as Symmorphomactra falcata by Dall (1894); it was recombined as Spisula falcata by Arnold and Hannibal (1913); it was recombined as Spisula (Symmorphomactra) falcata by Packard (1916); it was recombined as Simomactra falcata by Coan et al. (2000), Moore (2003), Coan and Valentich-Scott (2012), Hickman (2015) and Hendy (2021).
It was recombined as Symmorphomactra falcata by Dall (1894); it was recombined as Spisula falcata by Arnold and Hannibal (1913); it was recombined as Spisula (Symmorphomactra) falcata by Packard (1916); it was recombined as Simomactra falcata by Coan et al. (2000), Moore (2003), Coan and Valentich-Scott (2012), Hickman (2015) and Hendy (2021).
Subspecies
Synonymy list
| Year | Name and author |
|---|---|
| 1850 | Mactra falcata Gould p. 216 |
| 1894 | Symmorphomactra falcata Dall |
| 1913 | Spisula falcata Arnold and Hannibal |
| 1916 | Spisula (Symmorphomactra) falcata Packard p. 297 |
| 2000 | Simomactra falcata Coan et al. p. 458 |
| 2003 | Simomactra falcata Moore figs. Plate 10, figure 2 |
| 2012 | Simomactra falcata Coan and Valentich-Scott pp. 554, 555 |
| 2015 | Simomactra falcata Hickman p. 32 |
| 2021 | Simomactra falcata Hendy |
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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.
Simomactra falcata Gould 1850
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†Simomactra falcata brioniana Trask 1922
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Sanchez Roig 1926 | |||||
Age range: base of the Early/Lower Pliocene to the top of the Late/Upper Pleistocene or 5.33300 to 0.01170 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Pliocene | USA (California) | Spisula falcata (220195) | |
| Pliocene | USA (California) | Mactra falcata (96885) | |
| Pleistocene | USA (Oregon) | Spisula falcata (71142) | |
| Middle Pleistocene | USA (California) | Mactra falcata (222663 222664) Spisula falcata (222998) | |
| Late/Upper Pleistocene | USA (California) | Mactra falcata (222659 222660 222661 222662) Spisula falcata (160361 219029 219030) |