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Dinorthis occidentalis
Taxonomy
Pionorthis occidentalis was named by Okulitch (1943) [= 1943 Pionorthis cf. carletona (Twenhofel); Okulitch pI. 1. fig. 7.]. Its type specimen is GSC 2043, a valve (dorsal valve), and it is a 3D body fossil.
It was recombined as Dinorthis occidentalis by Jin and Zhan (2001), Jin et al. (2007).
It was recombined as Dinorthis occidentalis by Jin and Zhan (2001), Jin et al. (2007).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1943 | Pionorthis occidentalis Okulitch pp. 71 - 72 figs. pl. 1 f. 8-10 |
| 2001 | Dinorthis occidentalis Jin and Zhan pp. 17 - 20 figs. PI. 1, figs. 1- 22; PI. 2, figs. 1- 13; PI. 3, figs. 1- 5; PI. 21. fig. 2; Figs. 6-9 |
| 2007 | Dinorthis occidentalis Jin et al. p. 679 |
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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.
†Dinorthis occidentalis Okulitch 1943
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class, p = phylum, uc = unranked clade | |||||
| References: Hendy et al. 2009, Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Maysvillian to the top of the Richmondian or 450.20000 to 445.50000 Ma
Collections (30 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Maysvillian | Canada (Manitoba) | Dinorthis occidentalis (34813 166398) | |
| Maysvillian - Richmondian | USA (Wyoming) | Dinorthis occidentalis (35350 35351) | |
| Richmondian | USA (Wyoming) | Dinorthis occidentalis (13497 65239) | |
| Richmondian | USA (Nevada) | Pionorthis occidentalis (78053) | |
| Richmondian | Canada (Manitoba) | Dinorthis occidentalis (166380 166389 166392 166393 166394 166395 166396 166397 166400 166408 166464 166465 166500 166504 166635 166636 192101) | |
| Richmondian - Gamachian | Canada (Manitoba) | Plaesiomys occidentalis (23011 23013 23014 23018 23024) | |
| Ashgill | USA (Nevada) | Pionorthis occidentalis (359) |