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Dytremacephalus asperaxis

Trilobita - Ptychopariida - Elviniidae

Taxonomy
Dytremacephalus asperaxis was named by Palmer (1965). It is not extant. Its type specimen is USNM 141761, a cephalon/head (cranidium).

Synonymy list
YearName and author
1965Dytremacephalus asperaxis Palmer p. 85 figs. Pl. 18, fig. 10
2002Dytremacephalus asperaxis Jell and Adrain p. 85 figs. Pl. 18, fig. 10

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
subclassLibristoma
orderPtychopariidaSwinnerton 1915
familyElviniidaeKobayashi 1936
genusDytremacephalus
speciesasperaxis

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.

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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 14:51:19
Modified: 2009-12-19 06:03:31
Source: f = family, c = class
References: Hendy 2009, Aberhan et al. 2004

Age range: Steptoean or 497.00000 to 493.50000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Steptoean497.0 - 493.5USA (Nevada and Utah) Dytremacephalus asperaxis (74910)
Steptoean497.0 - 493.5USA (Nevada) Dytremacephalus asperaxis (110447)