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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 Aphelaspididae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (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
—EcdysozoaAguinaldo et al. 1997
—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: Aberhan et al. 2004, Whittington et al. 1997

Age range: base of the Paibian to the top of the Warendian or 497.00000 to 484.30000 Ma

Collections (26 total)


Time interval Ma Country or state Original ID and collection number
Paibian497.0 - 494.2Russian Federation (Krasnoyar) E. sentum (132502 132503)
Paibian497.0 - 494.2China (Zhejiang) E. rectangularis (125561 125690)
Paibian497.0 - 494.2China (Hunan) E. sentum (124977 124978)
Steptoean497.0 - 493.5USA (Nevada and Utah) E. sp. (74910)
Steptoean497.0 - 493.5USA (Nevada) E. brachyaxis (110622) E. brachyaxis, E. multisegmentus (122139) E. carinatum (111325) E. multisegmentus (122134 122136 122137 122140 122141)
Sakian497.0 - 492.8Kazakhstan E. carinatum (118305 118309 118310 118313)
Dresbachian497.0 - 486.85Canada (Yukon) E. denticulatum (55224 55225)
Dresbachian497.0 - 486.85USA (Nevada) E. multisegmentus (75437) E. sp. (240 241)
Furongian497.0 - 486.85USA (Utah) E. carinatum (156472)
Warendian486.85 - 484.3Australia (Queensland) E. sentum (77657)