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Coronocystis

Rhombifera - Cheirocrinidae

Taxonomy
Coronocystis was named by Paul (1972) [Sepkoski's age data: O Llde-u O Cara-l Sepkoski's reference number: 248,326]. It is not extant. Its type is Cheirocrinus angulatus.

It was assigned to Rhombifera by Sepkoski (2002); and to Cheirocrinidae by Paul (1972) and Paul and Rozhnov (2016).

Synonymy list
YearName and author
1972Coronocystis Paul
2002Coronocystis Sepkoski, Jr.
2016Coronocystis Paul and Rozhnov p. 270

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
subphylumBlastozoaSprinkle 1973
classRhombiferaZittel 1879
superfamilyGlyptocystitoidaBather 1899
familyCheirocrinidaeJaekel 1899
genusCoronocystisPaul 1972

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
C. R. C. Paul 1972A genus of Cheirocrinidae with open lateral circlet, six radial plates; long ambulacra extending from dome-shaped oral surface down into enlarged radial plates, five of which are deeply cleft to receive the ambulacra; with 15 disjunct pectinirhombs.