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Geraocrinus

Crinoidea - Homocrinida - Columbicrinidae

Taxonomy
Geraocrinus was named by Ulrich (1924). Its type is Geraocrinus sculptus.

It was assigned to Anomalocrinidae by Ulrich (1925); to Columbicrinidae by Ausich (1998); and to Disparida by Sepkoski (2002).

Species
G. sculptus (type species)

Synonymy list
YearName and author
1924Geraocrinus Ulrich
1925Geraocrinus Ulrich
1998Geraocrinus Ausich p. 27
2002Geraocrinus Sepkoski

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumBlastozoa
RankNameAuthor
classCrinoideaMiller 1821
subclassPentacrinoideaJaekel 1918
infraclassInadunata(Wachsmuth and Springer 1897)
Disparida(Moore and Laudon 1943)
orderHomocrinida
familyColumbicrinidae
genusGeraocrinusUlrich 1924

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.

G. †Geraocrinus Ulrich 1924
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Geraocrinus sculptus Ulrich 1925
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: high Mg calcitec
Ontogeny: accretion, addition of partsp
Environment: marinep
Locomotion: stationarysubc
Attached: yessubc
Life habit: intermediate-level epifaunalsubc
Diet: suspension feedersubc
Vision: blindc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2004-02-28 16:34:13
Modified: 2009-10-09 13:33:22
Source: subc = subclass, c = class, p = phylum
References: Kiessling 2004, Aberhan et al. 2004, Aberhan 1992

Age range: Chazyan or 471.30000 to 457.30000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Chazyan471.3 - 457.3USA (Tennessee) G. sculptus (173363)