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Olenellus (Olenellus)

Trilobita - Redlichiida - Olenellidae

Taxonomy
Olenellus (Olenellus) was named by Hall (1861). It is not extant. Its type is Olenus thompsoni.

It was assigned to Olenellus by Hall (1861), Palmer and Repina (1993), Lieberman (1998) and Palmer (1998).

Synonymy list
YearName and author
1861Olenellus (Olenellus) Hall
1993Olenellus (Olenellus) Palmer and Repina p. 22
1998Olenellus (Olenellus) Lieberman p. 68
1998Olenellus (Olenellus) Palmer p. 667

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
RankNameAuthor
classTrilobitaWalch 1771
orderRedlichiidaRichter 1932
suborderOlenellina
superfamilyOlenelloidea
familyOlenellidae
subfamilyOlenellinae
genusOlenellusHall 1861
subgenusOlenellusHall 1861

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.

Subg. †Olenellus (Olenellus) Hall 1861
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Diagnosis
ReferenceDiagnosis
A. R. Palmer and L. N. Repina 1993Species of Olenellus with genal spines at pos-
terolateral cephalic corners or slightly advanced to posi- tion opposite Ll. Intergenal spines, if present, small, close to genal spines, and directed slightly posterolater-ally. Preglabellar field absent or very short, sagittal length usu- ally less than twice sagittal length of anterior border. Ocu- lar lobes curved; posterior tips convergent toward glabella and situated opposite or posterior to posterior part of Ll. S2 isolated from axial furrow, usually present as distinct transverse slits.
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Spines: majorg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingo
Life habit: low-level epifaunalo
Diet: deposit feedero
Vision: well-developedf
Created: 2009-02-25 08:45:18
Modified: 2009-02-25 12:04:51
Source: g = genus, f = family, o = order, c = class
References: Whittington et al. 1997, Hendy 2009, Aberhan et al. 2004, Hendy et al. 2009

Age range: Dyeran or 515.30000 to 511.20000 Ma

Collections (14 total)


Time interval Ma Country or state Original ID and collection number
Cambrian538.8 - 485.4Canada (Northern Territories) Olenellus fowleri (228647)
Lenian516.0 - 510.2USA (Nevada) Olenellus fowleri (9821)
Dyeran515.3 - 511.2USA (California) Olenellus fowleri (10628) Olenellus n. sp. 1, Olenellus n. sp. 2 (10603) Olenellus n. sp. 2 (10604) Olenellus n.sp.3, Olenellus fowleri (10630)
Dyeran515.3 - 511.2USA (Nevada) Olenellus fowleri (10560 10569 156372 156373 156374 156377 234284 234285)