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Acernaspis superciliexcelsis

Trilobita - Phacopida - Phacopidae

Taxonomy
Acernaspis superciliexcelsis was named by Howells (1982). Its type specimen is BM In23571, an exoskeleton, and it is a mold. Its type locality is Newlands, which is in an Aeronian marine siltstone/sandstone in the Newlands Farm Formation of the United Kingdom.

Sister species lacking formal opinion data

Synonymy list
YearName and author
1982Acernaspis superciliexcelsis Howells p. 40 figs. Pl. 10, fig. 18

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
Life
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderPhacopinaStruve 1959
superfamilyPhacopoideaHupe 1953
familyPhacopidaeHawle and Corda 1847
genusAcernaspisCampbell 1967
speciessuperciliexcelsis

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: carnivoresubo
Vision: well-developedf
Created: 2009-06-11 18:21:11
Modified: 2009-12-16 01:24:24
Source: f = family, subo = suborder, c = class
References: Hendy 2009, Fortey and Owens 1999, Aberhan et al. 2004

Age range: base of the Rhuddanian to the top of the Aeronian or 443.40000 to 438.50000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Hirnantian - Rhuddanian445.2 - 440.8Russian Federation (Siberia) Acernaspis superciliexcelsis (205661)
Rhuddanian443.4 - 440.8United Kingdom (Scotland) Acernaspis superciliexcelsis (188533)
Rhuddanian - Aeronian443.4 - 438.5Russian Federation (Siberia) Acernaspis superciliexcelsis (206465)
Aeronian440.8 - 438.5United Kingdom (Scotland) Acernaspis superciliexcelsis (188534 type locality: 188535)