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Cidarina
Taxonomy
Cidarina was named by Dall (1909) [Sepkoski's age data: Q Plei R]. It is extant.
It was assigned to Eucyclinae by Squires and Goedert (1995); to Archaeogastropoda by Sepkoski (2002); to Trochidae by Squires and Saul (2003); and to Calliotropidae by Bandel (2010).
It was assigned to Eucyclinae by Squires and Goedert (1995); to Archaeogastropoda by Sepkoski (2002); to Trochidae by Squires and Saul (2003); and to Calliotropidae by Bandel (2010).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Cidarina Dall |
| 1995 | Cidarina Squires and Goedert p. 264 |
| 2002 | Cidarina Sepkoski |
| 2003 | Cidarina Squires and Saul pp. 51 - 52 |
| 2010 | Cidarina Bandel p. 474 |
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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. Cidarina Dall 1909
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†Cidarina antiqua Squires and Goedert 1995
†Cidarina beta Squires and Saul 2003
Cidarina cidaris Adams 1864
†Cidarina cretacea Squires and Saul 2003
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Squires and L. R. Saul 2003 | Shell small to medium, thin, trochiform, spire relatively elevated, ornamentation of coarse nodes or beads formed at intersections of spiral and collabral sculpture, ornamentation weakest anterior to body whorl periphery, aperture nearly circular and oblique, umbilicus covered by thin columellar callus, interior shell nacreous. |
Measurements
No measurements are available
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| Source: superf = superfamily, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range
Maximum range based only on fossils: base of the Maastrichtian to the top of the Middle Pleistocene or 72.20000 to 0.12900 Ma
Minimum age of oldest fossil (stem group age): 66.0 Ma
Minimum age of oldest fossil (stem group age): 66.0 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Maastrichtian - Late/Upper Maastrichtian | USA (California) | C. cretacea, C. beta (176784) | |
| Maastrichtian | USA (California) | C. cretacea, C. beta (185191) | |
| Bartonian | USA (Washington) | C. antiquua (161923 161924) | |
| Gelasian | USA (California) | C. cidaris (207761 207763) | |
| Pleistocene | USA (Oregon) | Solariella cidaris (71142) | |
| Middle Pleistocene | USA (California) | C. cidaris (202632 202636 202638 202639 202645 202966) Solariella cidaris (222665) | |
| Middle Pleistocene - Late/Upper Pleistocene | USA (California) | Margarita cidaris, Turcicula bairdi (222647) |