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Cidaris shastensis

Echinoidea - Cidaroida - Cidaridae

Taxonomy
Cidaris shastensis was named by Clark and Twitchell (1915) [attributed to Clark only]. Its type specimen is USNM 31188 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).

Synonymy list
YearName and author
1915Cidaris shastensis Clark and Twitchell p. 23 figs. Pl 7, fig 5
1927Cidaris shastensis Smith p. 125 figs. Pl 104, fig 11
1938Cidaris shastensis Grant and Hertlein p. 5

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEchinozoa
RankNameAuthor
classEchinoidea()
subclassCidaroidea(Claus 1880)
orderCidaroida()
superfamilyCidarideaGray 1825
familyCidaridae
genusCidarisLeske 1778
speciesshastensis

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.

Diagnosis
No diagnoses are available