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Cidarina beta
Taxonomy
Cidarina beta was named by Squires and Saul (2003). Its type specimen is LACMIP 12960, a shell, and it is a 3D body fossil. Its type locality is UCR loc. 8388, Pinyon Ridge, which is in a Paleocene marine mudstone in the San Francisquito Formation of California.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2003 | Cidarina beta Squires and Saul pp. 52 - 53 figs. 2.5-2.7 |
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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.
†Cidarina beta Squires and Saul 2003
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Squires and L. R. Saul 2003 | Cidarina with convex whorls, body whorl evenly rounded with wide-spaced and beaded spiral threads, becoming slightly weaker on base. |
Measurements
No measurements are available
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| Source: superf = superfamily, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range: Maastrichtian or 72.20000 to 66.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Maastrichtian - Late/Upper Maastrichtian | USA (California) | Cidarina beta (176784) | |
| Maastrichtian | USA (California) | Cidarina beta (185191) |