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Cirquella

Trilobita - Redlichiida

Taxonomy
Cirquella was named by Fri (1993) [Sepkoski's age data: Cm Atda-u]. It is not extant.

It was assigned to Nevadioidea by Lieberman (2001); to Olenellida by Sepkoski (2002); and to Nevadiidae by Jell and Adrain (2002).

Species
C. nelsoni

Synonymy list
YearName and author
1993Cirquella Fri
2001Cirquella Lieberman p. 108 figs. Figure 6.1, 6.3
2002Cirquella Jell and Adrain p. 358
2002Cirquella Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderRedlichiidaRichter 1932
suborderOlenellina
superfamilyNevadioidea
genusCirquellaFri 1993

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. †Cirquella Fri 1993
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†Cirquella nelsoni Lieberman 2001
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingo
Life habit: low-level epifaunalo
Diet: deposit feedero
Created: 2009-09-21 20:18:56
Modified: 2012-08-27 07:43:00
Source: o = order, c = class
References: Aberhan et al. 2004, Hendy et al. 2009

Age range: Montezuman or 520.00000 to 515.30000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Montezuman520.0 - 515.3USA (California) C. nelsoni (196129 196145 196185)