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Rachiosoma

Echinoidea - Phymosomatidae

Taxonomy
Rachiosoma was named by Pomel (1883) [Sepkoski's age data: K Ceno T Dani Sepkoski's reference number: 577,956].

It was assigned to Phymosomatidae by Fell and Pawson (1966) and Geys and Jagt (1986); and to Phymosomatoida by Sepkoski (2002).

Synonyms
Synonymy list
YearName and author
1883Rachiosoma Pomel p. 91
1946Pomelechinus Checchia-Rispoli
1966Rachiosoma Fell and Pawson p. U402
1986Rachiosoma Geys and Jagt p. 99
2002Rachiosoma Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEchinozoa
classEchinoidea()
RankNameAuthor
subclassEuechinoideaBronn 1860
superorderAcroechinoidea()
Carinacea
Calycina(Gregory 1900)
suborderPhymosomatoida()
familyPhymosomatidae
genusRachiosoma

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