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Erixanium

Trilobita - Olenida - Aphelaspidae

Taxonomy
Erixanium was named by Opik (1963) [Sepkoski's age data: Cm Dres-u Cm Fran-l Sepkoski's reference number: 16,489]. It is not extant. Its type is Erixanium sentum.

It was assigned to Ptychopariida by Sepkoski (2002); and to Aphelaspididae by Jell and Adrain (2002).

Synonymy list
YearName and author
1963Erixanium Opik
2002Erixanium Jell and Adrain p. 374
2002Erixanium Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
RankNameAuthor
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderOlenida
familyAphelaspidae(Palmer 1960)
genusErixaniumOpik 1963

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. †Erixanium Opik 1963
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†Erixanium carinatum Palmer 1965
†Erixanium multisegmentus Palmer 1965
†Erixanium rectangularis Lu and Lin 1983
†Erixanium sentum Opik 1963
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-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: well-developedf
Created: 2010-01-26 00:44:20
Modified: 2010-01-26 02:44:20
Source: f = family, c = class
References: Whittington et al. 1997, Aberhan et al. 2004

Age range: base of the Paibian to the top of the Warendian or 497.00000 to 478.60000 Ma

Collections (26 total)


Time interval Ma Country or state Original ID and collection number
Paibian497.0 - 494.0China (Hunan) E. sentum (124977 124978)
Paibian497.0 - 494.0China (Zhejiang) E. rectangularis (125561 125690)
Paibian497.0 - 494.0Russian Federation (Krasnoyar) E. sentum (132502 132503)
Steptoean497.0 - 493.5USA (Nevada) E. brachyaxis (110622) E. brachyaxis, E. multisegmentus (122139) E. carinatum (111325) E. multisegmentus (122134 122136 122137 122140 122141)
Steptoean497.0 - 493.5USA (Nevada and Utah) E. sp. (74910)
Sakian497.0 - 492.8Kazakhstan E. carinatum (118305 118309 118310 118313)
Dresbachian497.0 - 485.4Canada (Yukon) E. denticulatum (55224 55225)
Dresbachian497.0 - 485.4USA (Nevada) E. multisegmentus (75437) E. sp. (240 241)
Furongian497.0 - 485.4USA (Utah) E. carinatum (156472)
Warendian485.4 - 478.6Australia (Queensland) E. sentum (77657)