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Plesiastropecten

Asteroidea

Taxonomy
Plesiastropecten was named by Peyer (1944) [Sepkoski's age data: J Hett-u]. It is not extant. Its type is Plesiastropecten hallovensis.

It was assigned to Astropectininae by Spencer and Wright (1966); to Paleobenthopectininae by Blake (1984); to Paxillosida by Sepkoski (2002); to Notomyotida by Sepkoski (2002); to Velatida by Villier et al. (2009); and to Plumasteridae by Gale and Jagt (2021).

Species
P. hallovensis (type species)

Synonymy list
YearName and author
1944Plesiastropecten Peyer
1966Plesiastropecten Spencer and Wright p. U46
1984Plesiastropecten Blake p. 633
2002Plesiastropecten Sepkoski
2002Plesioastropecten Sepkoski
2009Plesiastropecten Villier et al. p. 396
2021Plesiastropecten Gale and Jagt p. 178

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
—Asterozoa()
RankNameAuthor
classAsteroidea
subclassAmbuloasteroidea
infraclassNeoasteroidea()
superorderSurculifera
—Spinulosida()
—Chevronida
—Velatida()
genusPlesiastropecten

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. †Plesiastropecten Peyer 1944
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Diagnosis
ReferenceDiagnosis
A.S. Gale and J.W.M. Jagt 2021Five-rayed plumasterid, in which the abactinal ossicles are stellate and which bears a fringe of elongated marginal spines.
Measurements
No measurements are available
Composition: high Mg calciteo
Ontogeny: accretion, addition of partsp
Grouping: solitaryo
Environment: outer shelf, oceanic, marineo
Locomotion: actively mobileo
Life habit: epifaunalo
Depth habitat: subthermoclineo
Diet: carnivoreo
Diet 2: detritivoreo
Vision: limitedc
Reproduction: oviparouso
Dispersal: watero
Dispersal 2: planktonico
Created: 2007-10-02 03:56:05
Modified: 2009-09-07 02:45:36
Source: o = order, c = class, p = phylum
References: Aberhan et al. 2004, Blake 1990, Aberhan 1992

Age range: base of the Hettangian to the top of the Middle Toarcian or 201.40000 to 180.40000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Hettangian201.4 - 199.5Switzerland P. hallovensis (32019)
Hettangian201.4 - 199.5Switzerland P. hallovensis (32020)
Middle Toarcian182.9 - 180.4France (Poitou-Charentes) P. hallovensis (31839)