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Plaxocrinus crassidiscus

Crinoidea - Dendrocrinida - Pirasocrinidae

Taxonomy
Plaxocrinus crassidiscus was named by Miller and Gurley (1894). It is not extant. It is the type species of Plaxocrinus.

Sister species lacking formal opinion data
P. brasilensis, P. gloukosensis, P. laxus, P. oeconomicus
Entered
by B. Mamo (authorized by J. Alroy) on 2012-02-13

Synonymy list
YearName and author
1894Plaxocrinus crassidiscus Miller and Gurley

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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
superorderCyathoformes
orderDendrocrinida()
superfamilyPirasocrinoidea(Moore and Laudon 1943)
familyPirasocrinidaeMoore and Laudon 1943
genusPlaxocrinusMoore and Plummer 1937
speciescrassidiscusMiller and Gurley 1894

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.

†Plaxocrinus crassidiscus Miller and Gurley 1894
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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: 2009-10-09 11:50:31
Modified: 2009-10-09 13:50:31
Source: subc = subclass, c = class, p = phylum
References: Kiessling 2004, Aberhan 1992, Hendy et al. 2009

Age range: Rusavkinian or 303.70000 to 287.60000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Rusavkinian303.7 - 287.6USA (Nebraska) Plaxocrinus crassidiscus (124407 124441)