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Paleochiridota

Holothuroidea - Apodida - Myriotrochidae

Taxonomy
Paleochiridota was named by Croneis and McCormack (1932) [Sepkoski's age data: C Tour-l C Step-u Sepkoski's reference number: 768]. Its type is Paleochiridota plummerae. It is the type genus of Paleochiridotidae. It was considered unknown by Gilliland (1993).

It was assigned to Holothuroidea by Croneis and McCormack (1932); to Protocaudinidae by Deflandre-Rigaud (1962); to Elasipoda by Deflandre-Rigaud (1952), Pawson (1966); to Apodida by Sepkoski (2002); and to Paleochiridotidae by Frizzell and Exline (1966), Gilliland (1993), Kozur and Mostler (2008).

Species
P. plummerae (type species), P. primaeva, P. radiata, P. robertsoni, P. terquemi, P. waylandensis
Entered
by J. Sepkoski on 2003-01-23; modified by L. Villier on 2013-10-27

Synonymy list
YearName and author
1932Paleochiridota Croneis and McCormack p. 139
1952Palaeochiridota Deflandre-Rigaud p. 7
1962Paleochiridota Deflandre-Rigaud p. 100
1966Paleochiridota Frizzell and Exline p. U669
1966Paleochiridota Pawson p. U645
1993Paleochiridota Gilliland p. 122
2002Paleochiridota Sepkoski
2008Paleochiridota Kozur and Mostler p. 110

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
RankNameAuthor
—Echinozoa()
classHolothuroidea()
orderApodida
familyMyriotrochidae
—Paleochiridotidae()
genusPaleochiridota

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. †Paleochiridota Croneis and McCormack 1932
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†Paleochiridota plummerae Croneis and McCormack 1932
†Paleochiridota primaeva Etheridge 1881
†Paleochiridota radiata Croneis and McCormack 1932
†Paleochiridota robertsoni Etheridge 1881
†Paleochiridota terquemi Croneis and McCormack 1932
†Paleochiridota waylandensis Croneis and McCormack 1932
Diagnosis
ReferenceDiagnosis
C. Croneis and J. McCormack 1932Calcareous, concavo-convex fossil holothurian discs with six outer spokes, and a variety of ornamental perforations or markings in the cen- tral area. Rim circular or scalloped.
Measurements
No measurements are available
Composition: high Mg calciteo
Ontogeny: accretion, addition of partsp
Environment: marinep
Locomotion: actively mobileo
Life habit: epifaunalo
Diet: detritivoreo
Vision: blindc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2004-06-23 02:35:55
Modified: 2009-10-09 11:59:34
Source: o = order, c = class, p = phylum
References: Aberhan et al. 2004, Arkadiev and Bugrova 1999, Aberhan 1992

Age range: base of the Missourian to the top of the Virgilian or 306.00000 to 298.90000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Missourian306.0 - 303.7USA (Texas) P. plummerae (94110) P. radiata, P. terquemi (97876)
Virgilian303.7 - 298.9USA (Texas) P. waylandensis (97877)
Virgilian303.7 - 298.9USA (Nebraska) P. sp. (94391)