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Taxonomy
Triarthrus was named by Green (1832). Its type is Triarthrus beckii.
It was assigned to Oleninae by Robison and Pantoja-Alor (1968); to Triarthrinae by Harrington and Leanza (1957), Poulsen (1959), Nikolaisen (1965), Owen (1981); to Olenidae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
It was assigned to Oleninae by Robison and Pantoja-Alor (1968); to Triarthrinae by Harrington and Leanza (1957), Poulsen (1959), Nikolaisen (1965), Owen (1981); to Olenidae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
Species
T. akkermensis, T. becki, T. beckii (type species), T. billingsi, T. canadensis, T. eatoni, T. freji, T. glaber, T. humilis, T. jachalensis, T. jemtlandicus, T. latissimus, T. linnarssoni, T. novoaustralis, T. rougensis (syn. T. huguesensis), T. sichuanensis, T. skutensis, T. spinosus, T. turkestanicus
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1832 | Triarthrus Green |
| 1957 | Triarthrus Harrington and Leanza |
| 1959 | Triarthrus Poulsen |
| 1965 | Triarthrus Nikolaisen |
| 1968 | Triarthrus Robison and Pantoja-Alor p. 790 |
| 1981 | Triarthrus Owen |
| 2002 | Triarthrus Jell and Adrain p. 455 |
| 2002 | Triarthrus Sepkoski |
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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 MaĚŠnsson 1998
†Triarthrus linnarssoni Thorslund 1940
†Triarthrus novoaustralis Smith et al. 2024
†Triarthrus sichuanensis Lu and Chang 1974
†Triarthrus skutensis Thorslund 1940
†Triarthrus spinosus Billings 1857
†Triarthrus turkestanicus Veber 1948
Diagnosis
No diagnoses are available