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Homocrinida

Crinoidea - Homocrinida

Synonymy list
YearName and author
1998Homocrinida Ausich p. 26
2017Homocrinida Wright et al. p. 842

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
classCrinoideaMiller 1821
subclassPentacrinoideaJaekel 1918
infraclassInadunata(Wachsmuth and Springer 1897)
superorderDisparida(Moore and Laudon 1943)
orderHomocrinida
orderHomocrinida

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
W. I. Ausich 1998Disparids with aboral cup composed primi- tively of five lintels, five infrabasals, and three radials (B, C, and E rays), derived forms may lose radials; plate circlets symmetrical about oral-aboral axis; aboral cup cone or bowl shaped, radial facets primitively plenary, and free arms branch.