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Listroa toxoura

Trilobita - Olenida - Aphelaspidae

Taxonomy
Listroa toxoura was named by Palmer (1962). Its type specimen is USNM 143192, a cephalon/head (cranidium), and it is a 3D body fossil. It is the type species of Listroa.

Synonymy list
YearName and author
1962Listroa toxoura Palmer pp. F-41 figs. Pl. 6, fig. 8

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

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.

†Listroa toxoura Palmer 1962
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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) Listroa toxoura (75737 75738 110440 110441 111322 111323)
Dresbachian497.0 - 485.4Canada (Yukon) Listroa toxoura (55223)
Dresbachian497.0 - 485.4USA (Nevada) Listroa toxoura (75428)