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Cidaris dilleri
Taxonomy
Cidaris dilleri was named by Clark and Twitchell (1915). Its type specimen is USNM 31189 and is a 3D body fossil. Its type locality is Round Mountain, west, which is in a Triassic marine horizon in the Cedar Formation of California.
It was considered a nomen dubium by Kier (1968).
It was considered a nomen dubium by Kier (1968).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1915 | Cidaris dilleri Clark and Twitchell p. 23 |
| 1927 | Cidaris dilleri Smith p. 125 figs. Pl 104, fig 12 |
| 1938 | Cidaris dilleri Grant and Hertlein p. 5 |
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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.
†Cidaris dilleri Clark and Twitchell 1915
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Kiessling 2004, Aberhan 1992 | |||||
Age range: Late/Upper Triassic or 237.00000 to 201.40000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Triassic | USA (California) | Cidaris dilleri (type locality: 203308) |