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Hemigymnia

Echinoidea - Spatangoida - Schizasteridae

Taxonomy
Hemigymnia is a genus. It is not extant.

It was assigned to Schizasteridae by Fischer (1966); and to Spatangoida by Sepkoski (2002).

Synonymy list
YearName and author
1966Hemigymnia Fischer p. U576
2002Hemigymnia Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumEchinozoa
classEchinoidea()
subclassEuechinoideaBronn 1860
RankNameAuthor
infraclassAcroechinoidea()
Carinacea
Irregularia()
Atelostomata
orderSpatangoida
suborderPaleopneustina
familySchizasteridae()
genusHemigymnia

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