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Ampyxina

Trilobita - Trinucleida - Raphiophoridae

Taxonomy
Ampyxina was named by Ullrich (1922).

It was assigned to Raphiophorinae by Fortey (1975); to Asaphida by Sepkoski (2002); and to Raphiophoridae by Owen and Bruton (1980), Jell and Adrain (2002).

Species
A. bellatula, A. lanceola, A. powelli (syn. A. scarabeus)
Species lacking formal opinion data
A. hibernica, A. medici

Synonymy list
YearName and author
1922Ampyxina Ullrich
1975Ampyxina Fortey p. 65
1980Ampyxina Owen and Bruton
2002Ampyxina Jell and Adrain p. 340
2002Ampyxina Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
subclassLibristoma
orderTrinucleida(Swinnerton 1915)
familyRaphiophoridaeAngelin 1854
genusAmpyxinaUllrich 1922

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. †Ampyxina Ullrich 1922
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†Ampyxina bellatula Savage 1917
†Ampyxina lanceola Whittington 1959
†Ampyxina powelli Raymond 1920
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Invalid names: Ampyxina scarabeus Butts 1941 [synonym]
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: suspension feederf
Vision: blindf
Created: 2009-12-13 23:10:26
Modified: 2012-08-27 07:27:49
Source: f = family, c = class
References: Whittington et al. 1997, Aberhan et al. 2004

Age range: base of the Arenig to the top of the Onnian or 477.10000 to 449.50000 Ma

Collections (36 total)


Time interval Ma Country or state Original ID and collection number
Ordovician486.85 - 443.1USA (Idaho) A. sp. (339)
Arenig477.1 - 468.0Norway (Spitsbergen) A. sp. (76644)
Arenigian - Llanvirn477.1 - 458.2Canada (Northwest Territories) A. sp. (25297)
Llanvirn468.0 - 458.2China (Xinjiang) A. sp. (170840 170841)
Llanvirn468.0 - 458.2China (QingHai) A. sp. (8681)
Llandeilo461.1 - 458.2USA (Tennessee) A. sp. (309)
Soudleyan458.2 - 457.2Ireland (Lenister) A. hibernica (55705)
Aurelucian458.2 - 456.6United Kingdom (Scotland) A. medici (181541)
Soudleyan - Marshbrookian458.2 - 454.0Norway A. sp. (2948)
Sandbian458.2 - 452.8United Kingdom (Scotland) A. powelli (208115 208116 208120 208121 208125)
Caradoc458.2 - 449.5USA (Virginia) A. sp. (326 327 76337)
Caradoc458.2 - 449.5Canada (Northwest Territories) A. sp. (341)
Turinian457.3 - 453.8USA (Virginia) A. sp. (76336)
Blackriveran457.3 - 449.6USA (Virginia) A. lanceola (105255) A. powelli (73344 105247)
Rocklandian457.3 - 449.6USA (Nevada) A. salmoni (331)
Shermanian - Maysvillian457.3 - 449.6Canada (Northwest Territories) A. sp. (25341 25344)
Actonian - Onnian454.0 - 449.5China (AnHui) A. sp. (7848)
Oandu452.8 - 451.8Norway (Oslo-Asker) A. sp. (162529)
Oandu452.8 - 451.8Norway A. sp. (162530 162531 162532 163192)
Rakvere - Nabala451.8 - 449.9Norway A. sp. (163189)
Rakvere - Nabala451.8 - 449.9Norway (Oslo) A. sp. (163190)
Nabala450.5 - 449.9Norway (Baerum) A. sp. (163197)
Richmondian - Gamachian449.6 - 443.1Canada (Yukon) A. sp. (25166)