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Taxonomy
Mactra ashburnerii was named by Gabb (1864).
It was recombined as Spisula (Cymbophora) ashburnerii by Packard (1916); it was recombined as Cymbophora ashburnerii by Gabb (1869), Whiteaves (1903), Stewart (1930), Popenoe (1937), Saul (1974).
It was recombined as Spisula (Cymbophora) ashburnerii by Packard (1916); it was recombined as Cymbophora ashburnerii by Gabb (1869), Whiteaves (1903), Stewart (1930), Popenoe (1937), Saul (1974).
Sister species lacking formal opinion data
C. appressa, C. araucana, C. asburnerii, C. berryi, C. cancellosa, C. canonensis, C. conradi, C. emmonsi, C. ezoensis, C. gracilis, C. hetonaiensis, C. holmesi, C. huerfanensis, C. inflata, C. lintea, C. puteana, C. saccellana, C. scabellum, C. schucherti, C. securis, C. simpsonensis, C. spooneri, C. subtilis, C. tellinoides, C. trigonalis, C. utahensis, C. wordeni
Synonymy list
| Year | Name and author |
|---|---|
| 1864 | Mactra ashburnerii Gabb p. 153 figs. pl. 22, fig. 127 |
| 1869 | Cymbophora ashburnerii Gabb pp. 181, 236 figs. pl. 29, fig. 69 |
| 1903 | Cymbophora ashburnerii Whiteaves p. 374 |
| 1909 | Mactra ashburnerii Arnold p. 11 figs. pl. 1, fig. 4 |
| 1916 | Spisula (Cymbophora) ashburnerii Packard p. 298 figs. pl. 26, figs. 4, 5, pl. 27, fig. 1 |
| 1930 | Cymbophora ashburnerii Stewart p. 212 figs. pl. 5, fig. 6a |
| 1937 | Cymbophora ashburnerii Popenoe p. 397 figs. Plate 49, figure 1 |
| 1974 | Cymbophora ashburnerii Saul p. 1078 figs. Pl. 1, figs. 1-4; P1. 2, figs. 1-3; P1. 3, figs. 1-2; Text-fig. 2A; Table 2 |
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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.
†Cymbophora ashburnerii Gabb 1864
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. P. Popenoe 1937 | he following is a de- scription of the left valve of this species: Chondrophore narrow and shallow, its floor being almost flush with the inner face of the hinge-plate; on the anterior border of the chondrophore is a very thin laminar tooth (accessory lamella?) which is separated from the posterior limb of the bifid cardinal by a very narrow slit; bifid cardinal tooth stout, limbs short; lateral teeth strong and situated close to the beaks. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Sanchez Roig 1926, Aberhan et al. 2004 | |||||
Age range: base of the Cenomanian to the top of the Early/Lower Maastrichtian or 100.50000 to 66.00000 Ma
Collections (38 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cenomanian | USA (California) | Cymbophora ashburnerii (167601) | |
| Coniacian | USA (California) | Mactra ashburnerii (44232) | |
| Santonian | USA (California) | Cymbophora ashburnerii (44279) | |
| Campanian | USA (California) | Cymbophora ashburnerii (158389) | |
| Early/Lower Campanian | USA (California) | Mactra ashburnerii (239772) | |
| Late/Upper Campanian | USA (California) | Cymbophora ashburnerii (1513 1514 1515 1516 1538 1547 1549 1550 86793 185168 219077 220906 221105) Cymbophora triangulata (72057) | |
| Middle Campanian | USA (California) | Cymbophora ashburnerii (185174 219078 220912 221106 221107) Mactra ashburnerii (72056) | |
| Early/Lower Maastrichtian | USA (California) | Cymbophora ashburnerii (1545 215758) | |
| Late/Upper Maastrichtian | USA (California) | Cymbophora ashburnerii (214073 219052 221990) | |
| Maastrichtian | USA (California) | Cymbophora ashburnerii (1354 83793 176785 185507 185509 185622 185635 214074) |