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Orthothetina eusarkos
Taxonomy
Streptorhynchus eusarkos was named by Abich (1878). It is a 3D body fossil. Its type locality is Araxes Gorge, which is in a Wuchiapingian carbonate limestone in Azerbaijan.
It was recombined as Orthotetes eusarcos by Arthaber (1900) and Stoyanow (1910); it was recombined as Orthothetina eusarkos by Sokolskaja (1965), Fantini Sestini (1965), Shen and He (1994), Shen and Shi (2007), Yousefirad et al. (2013), Garbelli and Angiolini (2014) and Ghaderi et al. (2015).
It was recombined as Orthotetes eusarcos by Arthaber (1900) and Stoyanow (1910); it was recombined as Orthothetina eusarkos by Sokolskaja (1965), Fantini Sestini (1965), Shen and He (1994), Shen and Shi (2007), Yousefirad et al. (2013), Garbelli and Angiolini (2014) and Ghaderi et al. (2015).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1878 | Streptorhynchus eusarkos Abich p. 73 figs. Pl 6, figs 4,4a |
| 1900 | Orthotetes armeniacus Arthaber p. 246 figs. Pl 19, figs 4a-d, 5 |
| 1900 | Orthotetes eusarcos Arthaber p. 248 figs. Pl 19, figs 6a-d |
| 1910 | Orthotetes eusarcos Stoyanow p. 103 |
| 1911 | Orthotetes armeniacus Frech p. 174 figs. Pl 26, figs 2a,b |
| 1922 | Orthotetes armeniacus Hayasaka p. 71 figs. Pl 4, fig 1 |
| 1965 | Orthothetina armeniaca Fantini Sestini p. 34 figs. Pl 3, figs 4,5 |
| 1965 | Orthothetina eusarkos Fantini Sestini p. 36 figs. Pl 3, fig 3 |
| 1965 | Orthothetina eusarkos Sokolskaja p. 208 figs. Pl 31, figs 3-5 |
| 1994 | Orthothetina eusarkos Shen and He p. 447 figs. Pl 2, figs 5,6 |
| 2007 | Orthothetina eusarkos Shen and Shi p. 21 figs. Pl 6, figs 25-28 |
| 2013 | Orthothetina eusarkos Yousefirad et al. p. 69 figs. Pl 2, fig 2 |
| 2014 | Orthothetina eusarkos Garbelli and Angiolini p. 42 figs. Pl 2, figs 5-11 |
| 2015 | Orthothetina eusarkos Ghaderi et al. figs. Pl 1, figs 24-27 |
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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.
†Orthothetina eusarkos Abich 1878
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Invalid names: Orthotetes armeniacus Arthaber 1900 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 9 | 23.4 | 11.0 | 40.0 | 27.8 | 10.6 | |
| valve height | 1 | 45.0 | - | - | - | - |
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| Source: c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Roadian to the top of the Changhsingian or 272.30000 to 252.17000 Ma
Collections (27 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kungurian - Capitanian | China (Hubei) | Orthotetes armeniacus (121096) | |
| Roadian | Japan | Orthothetina eusarkos (125086) | |
| Wordian | China (Nei Mongol) | Orthothetina eusarkos (109213) | |
| Wordian | Iran (Tehran) | Orthothetina armeniaca (43297) Orthothetina armeniaca, Orthothetina eusarkos (43296) | |
| Wuchiapingian | Azerbaijan | Orthotetes armeniacus (132459) Orthotetes eusarcos (132464) Orthothetina eusarkos (94948 110595 116754) Streptorhynchus eusarkos (232366) | |
| Wuchiapingian | Iran | Orthothetina eusarkos (118266 118269 155072 155078 155079 155121 155124 175882) | |
| Wuchiapingian | Armenia | Orthothetina eusarkos (110784) | |
| Wuchiapingian | Iran (Abadeh) | Orthothetina eusarkos (63894) | |
| Changhsingian | China (Chongqing) | Orthothetina eusarkos (94966 94967 94968) | |
| Changhsingian | Iran | Orthothetina eusarkos (118359) | |
| Changhsingian | China (Guizhou) | Orthothetina eusarkos (117481) | |
| Changhsingian - Griesbachian | India (Kashmir) | Schellwienella sp. (48913) |