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Stomechinus dissimilaris

Echinoidea - Stomopneustoida - Stomechinidae

Taxonomy
Stomechinus dissimilaris was named by Linder et al. (1988). Its type specimen is UCMP 38196, a test, and it is a 3D body fossil. Its type locality is Butte Creek [Abiqua Mbr, Scotts Mills Fm], which is in an Oligocene marine limestone in the Scotts Mills Formation of Oregon.

Sister species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1988Stomechinus dissimilaris Linder et al. p. 948 figs. fig. 2.6

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEchinozoa
RankNameAuthor
classEchinoidea()
subclassEuechinoideaBronn 1860
Echinacea()
orderStomopneustoida
familyStomechinidae()
genusStomechinus
speciesdissimilaris

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
ReferenceDiagnosis
R. A. Linder et al. 1988Medium sized, tubercles noncrenulate; ambu- lacral plates diadematoid, primary tubercles on every third plate, in vertical rows; large secondary tubercles on ambulacral plates without large primary tubercles, in vertical row; on interam- bulacral plates two larger secondary tubercles in vertical row adradial to primary tubercles; interambulacra with single ver- tical row of primary tubercles and single vertical rows of abradial and adradial secondary tubercles.