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Hypermecaspis

Trilobita - Olenida - Olenidae

Taxonomy
Hypermecaspis was named by Harrington and Leanza (1957) [Sepkoski's age data: O Trem-u O Aren-u Sepkoski's reference number: 378,795]. It is not extant.

It was assigned to Hypermecaspididae by Harrington and Leanza (1957); to Ptychopariida by Sepkoski (2002); and to Olenidae by Jell and Adrain (2002).

Synonymy list
YearName and author
1957Hypermecaspis Harrington and Leanza
2002Hypermecaspis Jell and Adrain p. 387
2002Hypermecaspis Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
RankNameAuthor
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderOlenida
familyOlenidaeBurmeister 1843
genusHypermecaspisHarrington and Leanza 1957

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. †Hypermecaspis Harrington and Leanza 1957
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†Hypermecaspis armata Harrington and Leanza 1957
†Hypermecaspis brevifrons Fortey 1974
†Hypermecaspis bulmani Harrington and Leanza 1957
†Hypermecaspis chamarrensis Waisfeld 2001
†Hypermecaspis edselbrussai Waisfeld and Vaccari 2009
†Hypermecaspis inermis Harrington and Leanza 1957
†Hypermecaspis latigena Fortey 1974
†Hypermecaspis mimitis Henderson 1983
†Hypermecaspis occidentalis Waisfeld 2001
†Hypermecaspis venulosa Fortey 1974
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesf
Adult length: 10 to < 100f
Adult width: 10 to < 100f
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: well-developedf
Created: 2009-06-11 18:16:45
Modified: 2009-12-19 06:27:27
Source: f = family, c = class
References: Hendy 2009, Aberhan et al. 2004

Age range: base of the Varangu to the top of the Arenig or 485.40000 to 466.00000 Ma

Collections (35 total)


Time interval Ma Country or state Original ID and collection number
Ibexian487.5 - 470.0USA (California) H. brevifrons (205358)
Ibexian487.5 - 470.0Norway (Spitsbergen) H. latigena (106475) H. venulosa (106470)
Tremadoc486.5 - 477.7Norway H. sp. (3106)
Varangu485.4 - 484.5Norway (Oslo) H. rugosa (3183)
Stairsian485.4 - 478.6USA (Nevada) H. kolouros (278)
Gasconadian485.4 - 477.7USA (Nevada) H. kolouros (104507) H. sp. (104513)
Arenigian478.6 - 468.1Argentina (Salta) H. armata (115865) H. inermis (115821 115843 115852 115853 115854 115856 115869 115871 115985)
Arenig478.6 - 466.0Argentina H. sp. (8777 9009)
Arenig478.6 - 466.0Australia (Queensland) H. mimitis (197362)
Arenig478.6 - 466.0Norway (Spitsbergen) H. sp. (76645 76646 76648)
Arenig478.6 - 466.0Bolivia H. sp. (8846 9109 9111)
Moridunian477.7 - 473.8United Kingdom (England) H. venerabilis (3683)
Floian477.7 - 470.0Argentina H. edselbrussai (207950 207951)
Floian477.7 - 470.0Russian Federation (Siberia) H. lebediensis (205383)
Whiterockian470.0 - 457.3Norway (Spitsbergen) H. brevifrons (106478) H. latigena (106476) H. latigena, H. brevifrons (106477)
Llanvirn468.0 - 458.4Bolivia (Nor Cinti) H. branisai (9112)