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Listroa

Trilobita - Olenida - Aphelaspidae

Taxonomy
Listroa was named by Palmer (1962) [Sepkoski's age data: Cm Dres-u Sepkoski's reference number: 1017]. It is not extant. Its type is Listroa toxoura.

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

Species
L. toxoura (type species)

Synonymy list
YearName and author
1962Listroa Palmer pp. F-40
2002Listroa Jell and Adrain p. 399
2002Listroa 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)
genusListroa

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. †Listroa Palmer 1962
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Listroa toxoura Palmer 1962
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: Steptoean or 497.00000 to 493.50000 Ma

Collections (8 total)


Time interval Ma Country or state Original ID and collection number
Steptoean497.0 - 493.5USA (Nevada) L. toxoura (75737 75738 110440 110441 111322 111323)
Dresbachian497.0 - 485.4USA (Nevada) L. toxoura (75428)
Dresbachian497.0 - 485.4Canada (Yukon) L. toxoura (55223)