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Acernaspis

Trilobita - Phacopida - Phacopidae

Taxonomy
Acernaspis was named by Campbell (1967) [Sepkoski's age data: S Ldov-l S Wenl-l Sepkoski's reference number: 393].

It was assigned to Phacopidae by Jell and Adrain (2002); and to Phacopida by Sepkoski (2002).

Synonyms
Synonymy list
YearName and author
1967Acernaspis Campbell
1968Murphycops Lespérance
2002Acernaspis Jell and Adrain p. 336
2002Acernaspis Sepkoski

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

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. †Acernaspis Campbell 1967
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Subg. †Acernaspis (Eskaspis) Clarkson et al. 1977
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†Acernaspis (Eskaspis) woodburnensis Clarkson et al. 1977
†Acernaspis copperi Chatterton and Ludvigsen 2004
†Acernaspis elliptifrons Esmark 1833
†Acernaspis nanus Maksimova 1962
†Acernaspis orestes Billings 1860
†Acernaspis xynon Howells 1982
Invalid names: Murphycops Lespérance 1968 [synonym]
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: Aberhan et al. 2004, Fortey and Owens 1999, Hendy 2009

Age range: base of the Hirnantian to the top of the Telychian or 445.20000 to 433.40000 Ma

Collections (128 total)


Time interval Ma Country or state Original ID and collection number
Ashgill449.5 - 443.7Canada (Québec) A. sp. (25159)
Ashgill - Llandovery449.5 - 433.4Canada (Québec) A. primaeva (24501 24525 24526) A. sp. (24456) Acernaspos primaeva (24457)
Hirnantian - Rhuddanian445.2 - 440.8Russian Federation (Siberia) A. becsciensis, A. superciliexcelsis, A. xynon (205661)
Rhuddanian443.4 - 440.8Russian Federation A. sp. (152991)
Rhuddanian443.4 - 440.8United Kingdom (Wales) A. salmoensis (50281)
Rhuddanian443.4 - 440.8Canada (Quebec) A. becsciensis (184379 184397 184997 185534 185539 187771) A. sp. (184375 184639)
Rhuddanian443.4 - 440.8United Kingdom (Scotland) A. elliptifrons (188530 188531) A. superciliexcelsis, A. xynon (188533) A. xynon (188532)
Rhuddanian443.4 - 440.8Russian Federation (Siberia) Phacops khatangensis (3342)
Rhuddanian - Aeronian443.4 - 438.5Russian Federation (Siberia) A. superciliexcelsis (206465)
Rhuddanian - Aeronian443.4 - 438.5Greenland A. sp. (12937)
Rhuddanian - Aeronian443.4 - 438.5United Kingdom (Wales) A. sp. (3495 3501)
Llandovery443.4 - 433.4Canada (Quebec) Murphycops skidmorei (11416 13134)
Llandovery443.4 - 433.4United Kingdom (Wales) A. sp. (3207)
Llandovery443.4 - 433.4Russian Federation (Siberia) Eophacops nanus (206317) Phacops khatangensis (206319)
Llandovery443.4 - 433.4Ukraine A. sp. (23343)
Llandovery - Wenlock443.4 - 427.4Ukraine A. sp. (23346)
Raikkula440.8 - 438.8Latvia A. sp. (13722)
Aeronian440.8 - 438.5United Kingdom (England) A. glabra (50286 50287)
Aeronian440.8 - 438.5Canada (Quebec) A. orestes (184645 185540 186040 186048 186075 186076 186080 186081 186082 186092 187764 187765 187766 187772 187776 187777) A. sp. (184640) A. sp., A. boltoni, A. orestes (184996)
Aeronian440.8 - 438.5Canada (Québec) A. orestes (24416 24418)
Aeronian440.8 - 438.5Norway A. angustifrons (14315)
Aeronian440.8 - 438.5Greenland A. sp. (23053)
Aeronian440.8 - 438.5United Kingdom (Scotland) A. sp. A (188536 188537) A. sp. A, A. woodburnensis (188538) A. superciliexcelsis (188534 188535)
Aeronian440.8 - 438.5United Kingdom (Shropshire) A. elliptifrons (50131 50132)
Aeronian440.8 - 438.5Czech Republic A. sp. (14087)
Aeronian440.8 - 438.5United Kingdom (Wales) A. elliptifrons (50156 50277 50278) A. salmoensis (50282)
Aeronian - Telychian440.8 - 433.4Canada (Quebec) A. boltoni, A. orestes (184407) A. orestes (184409 184999 186061 186064 186065 186066 186067 186068 186069 186070 186071 186078 186079 186088 187767 187774 187775) A. sp. (184998 185000)
Aeronian - Telychian440.8 - 433.4United Kingdom (Wales) A. elliptifrons (50159)
Aeronian - Telychian440.8 - 433.4Canada (Québec) A. orestes (24412)
Adavere439.0 - 428.2Estonia A. konoverensis (13723)
Telychian438.5 - 433.4United Kingdom (Shropshire) A. quadrilineata (49579)
Telychian438.5 - 433.4United Kingdom (England) A. quadrilineata (50143) Phacops orestes (49635)
Telychian438.5 - 433.4USA (Wisconsin) A. sp. (76451)
Telychian438.5 - 433.4Australia (Tasmania) A. sp. (40017)
Telychian438.5 - 433.4United Kingdom (Scotland) A. sp. (23310) A. sufferta (23297 23299 23301 23302 23308 170694 188545) A. woodburnensis (170697)
Telychian438.5 - 433.4Canada (Québec) A. orestes (24420 24423 24424 24435)
Telychian438.5 - 433.4Canada (Quebec) A. copperi, A. orestes (186053) A. orestes (186055 186073 186077 186083 186085 186086 186087 186089 187768) A. sp. (186043 186044 186059 186072 186074 187769) A. sp., A. copperi, A. orestes (184641)