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Pentacrinus decorus

Crinoidea - Isocrinida - Pentacrinitidae

Taxonomy
Pentacrinus decorus was named by Thompson (1864). It is extant.

It was recombined as Pentacrinus (Neocrinus) decorus by Wyville Thomson (1864); it was recombined as Neocrinus decorus by Donovan et al. (2005) and Hess and Messing (2011).

Sister species lacking formal opinion data

Synonymy list
YearName and author
1864Pentacrinus decorus Thompson p. 7
1864Pentacrinus (Neocrinus) decorus Wyville Thomson p. 7
2005Neocrinus decorus Donovan et al. p. 96
2011Neocrinus decorus Hess and Messing p. 55

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumBlastozoa
classCrinoideaMiller 1821
subclassPentacrinoideaJaekel 1918
RankNameAuthor
infraclassInadunata(Wachsmuth and Springer 1897)
Cladida(Moore and Laudon 1943)
Eucladida
infraorderArticulata(Miller 1821)
orderIsocrinidaSieverts-Doreck 1952
suborderPentacrinitinaGray 1842
familyPentacrinitidaeGray 1842
genusPentacrinusBlumenbach 1804
speciesdecorusThompson 1864

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.

Pentacrinus decorus Thompson 1864
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Diagnosis
ReferenceDiagnosis
S. K. Donovan et al. 2005Columnal pentagonal in outline with strongly rounded angles. Lumen
small, central, rounded. Perilumen planar, narrow. Areola pentapetaloid, closed. Crenularium surrounding areola, comprised of few, moderately coarse, short, crenulae, continuing to circumference in interpetaloid zone. Latus planar, unsculptured. Columnal low.