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Triarthrus

Artiopoda - Olenida - Olenidae

Synonymy list
YearName and author
1832Triarthrus Green
1957Triarthrus Harrington and Leanza
1959Triarthrus Poulsen
1965Triarthrus Nikolaisen
1968Triarthrus Robison and Pantoja-Alor p. 790
1981Triarthrus Owen
2002Triarthrus Jell and Adrain p. 455
2002Triarthrus Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaGravenhorst 1843
RankNameAuthor
classArtiopodaHou and Bergstrom
classTrilobitaWalch 1771
orderOlenida
familyOlenidaeBurmeister 1843
subfamilyOleninaeBurmeister 1843
genusTriarthrusGreen 1832

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. †Triarthrus Green 1832
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†Triarthrus akkermensis Ghobadi Pour 2022
†Triarthrus becki Green 1832
†Triarthrus beckii Green 1832
†Triarthrus billingsi Barrande 1872
†Triarthrus canadensis Smith 1861
†Triarthrus eatoni Hall 1838
†Triarthrus freji Thorslund 1940
†Triarthrus glaber Billings 1859
†Triarthrus humilis Hadding 1913
†Triarthrus jachalensis Harrington and Leanza 1957
†Triarthrus jemtlandicus Linnarsson 1875
†Triarthrus latissimus Månsson 1998
†Triarthrus linnarssoni Thorslund 1940
†Triarthrus novoaustralis Smith et al. 2024
†Triarthrus rougensis Parks 1921
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Invalid names: Triarthrus huguesensis Foerste 1924 [synonym]
†Triarthrus sichuanensis Lu and Chang 1974
†Triarthrus skutensis Thorslund 1940
†Triarthrus spinosus Billings 1857
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Adult height: 1.0 to < 10g
Spines: noneg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: well-developedf
Comments: BODY SIZE: Data from Harrington et al. (1959).g
Created: 2009-06-08 12:45:18
Modified: 2009-06-08 14:45:18
Source: g = genus, f = family, c = class
References: Aberhan et al. 2004, Hendy 2009

Age range: base of the Tremadoc to the top of the Rawtheyan or 486.40000 to 445.20000 Ma

Collections (131 total)


Time interval Ma Country or state Original ID and collection number
Tremadocian486.85 - 477.1China (Zhejiang) T. sp. (277018)
Tremadocian - Floian486.85 - 471.3Sweden T. sp. (3195)
Tremadoc486.4 - 477.1China (ZheJiang) T. sp. (7774 7816)
Tremadoc486.4 - 477.1Argentina (Salta) T. sp. (115834) T. tertragonalis (115722)
Tremadoc486.4 - 477.1Bolivia T. sp. (8801 8803 8841)
Tremadoc486.4 - 477.1France (Montagne Noire) T. sp. (20829 76571)
Floian477.1 - 471.3Russian Federation (Siberia) T. sp. (205383)
Arenig477.1 - 468.0Argentina T. sp. (8878 9009)
Arenig477.1 - 468.0Bolivia T. sp. (9109)
Arenig477.1 - 468.0Norway (Spitsbergen) T. sp. (76646 76648)
Arenig477.1 - 468.0Sweden T. sp. (3196)
Arenig477.1 - 468.0China (GanSu) T. sp. (8568)
Arenig477.1 - 468.0USA (Nevada) T. similis (412)
Arenigian477.1 - 468.0Argentina (Salta) T. parchensis (115848 115850) T. sp. (115841 115855)
Chazyan471.3 - 457.3Canada (Northwest Territories) T. sp. (402)
Early/Lower Llanvirn468.0 - 461.1Argentina T. sp. (8870)
Llanvirn468.0 - 458.2China (GanSu) T. sp. (8573)
Llanvirn468.0 - 458.2China (QingHai) T. sp. (8681)
Uhaku - Lasnamagi459.7 - 459.7Sweden T. humilis (164507)
Uhaku - Lasnamagi459.7 - 459.7Sweden (Jämtland) T. humilis (164506)
Uhaku - Lasnamagi459.7 - 459.7Norway (Nes-Hamar) T. humilis (163466)
Costonian458.2 - 457.2Argentina (San Juan) T. jachalensis (70622 70623 70626 73368 73380 115231)
Costonian - Longvillian458.2 - 455.0Venezuela (Merida Andes) T. sp. (8858)
Sandbian458.2 - 452.8Argentina (San Juan) T. jachalensis (73378 73379 73388 120528)
Gisbornian458.2 - 452.3New Zealand T. sp. (63965)
Caradoc458.2 - 449.5Canada (Quebec) T. eatoni (77220)
Caradoc458.2 - 449.5Canada (Ontario) T. canadensis, T. spinosus (26297)
Caradoc458.2 - 449.5Sweden (Saljan) T. pygmaeus (77102)
Caradoc458.2 - 449.5Sweden (Vestergotland) T. sp. (76077)
Caradoc458.2 - 449.5Argentina (San Juan) Porterfieldia jachalensis (116112)
Caradoc458.2 - 449.5United Kingdom (Wales) T. sp. (348)
Caradoc458.2 - 449.5Sweden T. jemtlandicus, T. latissimus (275909) T. linnarssoni, T. freji, T. jemtlandicus (275910) T. linnarssoni, T. linnarssoni (275911)
Late/Upper Ordovician458.2 - 443.1Canada (Quebec) T. billingsi (275744)
Mohawkian457.3 - 451.0USA (Nevada) T. sp. (104497)
Shermanian457.3 - 449.6USA (New York) T. eatoni (76744 76746 76749 76750 76751)
Shermanian - Maysvillian457.3 - 449.6Canada (Northwest Territories) T. sp. (25331 25333)
Trentonian457.3 - 449.6USA (New York) T. becki (338 173011) T. eatoni (164716)
Actonian - Onnian454.0 - 449.5Sweden T. sp. (2771)
Chatfieldian453.8 - 451.0USA (New York) T. becki (76093)
Chatfieldian - Edenian453.8 - 450.2Canada (Nunavut) T. glaber, T. eatoni (192339)
Onnian - Pusgillian453.0 - 449.2Norway (Oslo) T. linnarssoni (163312)
Katian452.8 - 445.2China T. sichuanensis (236250 236255)
Katian452.8 - 445.2Kazakhstan T. akkermensis (275754 275755 275756)
Katian452.8 - 445.2USA (New York) T. eatoni (340 204767)
Rakvere - Nabala451.8 - 449.9Norway (Oslo) T. skutensis (163190)
Edenian451.0 - 450.2USA (Kentucky) T. eatoni (72674 72675 72676) T. sp. (74718 74728 74836 74840 74841 74842 74843 74844 74845 74846 74847 74848 74850 74876)
Edenian451.0 - 450.2USA (Ohio) T. sp. (383 385 74674 74677 74680 74681 74682 74683 74688 74693 74696 74768 74770 74773 74774 74782 74784)
Edenian451.0 - 450.2Canada (Ontario) T. eatoni (173132)
Edenian451.0 - 450.2Canada (Quebec) T. sp. (440) T. sp., T. spinosus (56002)
Edenian451.0 - 450.2USA (Pennsylvania) T. becki (34895)
Edenian451.0 - 450.2Canada (Québec) T. eatoni (164218)
Edenian - Maysvillian451.0 - 449.6USA (Michigan) T. eatoni (26337)
Edenian - Maysvillian451.0 - 449.6Canada (Ontario) T. canadensis (26299) T. canadensis, T. eatoni, T. huguesensis (26295) T. canadensis, T. spinosus (26298)
Edenian - Maysvillian451.0 - 449.6Canada (Quebec) T. huguesensis (173008)
Maysvillian450.2 - 449.6Canada (Quebec) T. glaber, T. rougensis, T. spinosus, T. eatoni (184439) T. huguesensis (155412)
Maysvillian450.2 - 449.6Canada (Ontario) T. eatoni (26296) T. huguesensis, T. spinosus (26302)
Maysvillian450.2 - 449.6Canada (Québec) T. huguesensis (173121)
Pusgillian449.5 - 449.2Norway T. sp. (2949)
Pirgu449.5 - 445.2Sweden (Jämtland) T. humilis (164510)
Ashgill449.5 - 443.1Canada (Quebec) T. huguesensis (56000)
Wufeng - Rawtheyan449.4 - 445.2China (ShanXi) T. sp. (7881)
Bolindian449.0 - 443.1Australia (New South Wales) T. novoaustralis (276245 276246)