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Tainionautilus
Taxonomy
Tainionautilus was named by von Mojsisovics (1902) [Sepkoski's age data: P Guad Tr Olen Sepkoski's reference number: 524,995]. Its type is Nautilus transitorius.
It was reranked as Metacoceras (Tainionautilus) by Reed (1944).
It was assigned to Temnocheilos by Frech (1905); to Metacoceras by Reed (1944); to Nautilida by Sepkoski (2002); and to Tainoceratidae by Teichert et al. (1964), Korn et al. (2020), Korn (2025).
It was reranked as Metacoceras (Tainionautilus) by Reed (1944).
It was assigned to Temnocheilos by Frech (1905); to Metacoceras by Reed (1944); to Nautilida by Sepkoski (2002); and to Tainoceratidae by Teichert et al. (1964), Korn et al. (2020), Korn (2025).
Synonymy list
| Year | Name and author |
|---|---|
| 1902 | Tainionautilus von Mojsisovics p. 232 |
| 1905 | Temnocheilos (Taenionautilus) Frech |
| 1944 | Metacoceras (Tainionautilus) Reed p. 356 |
| 1964 | Tainionautilus Teichert et al. p. 415 |
| 2002 | Tainionautilus Sepkoski |
| 2020 | Tainionautilus Korn et al. p. 156 |
| 2025 | Tainionautilus Korn p. 60 |
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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. †Tainionautilus von Mojsisovics 1902
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†Foordiceras transitorium multicostata Reed 1931
†Metacoceras (Tainionautilus) multicostatum Reed 1931
†Tainionautilus darini Caneva 1906
†Tainionautilus deinceps Korn and Ghaderi 2025
†Tainionautilus fugax Mojsisovics 1869
†Tainionautilus trachyceras Frech 1905
†Tainionautilus transitorius Waagen 1879
†Tainionautilus wynnei Waagen 1879
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 38.8 | 25.0 | 53.0 | 44.0 | 14.3 | |
| shell diameter | 3 | 80.9 | 34.0 | 130.0 | 120.0 | 52.8 | |
| shell inflation | 3 | 29.6 | 10.0 | 53.0 | 49.0 | 23.8 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Wuchiapingian to the top of the Smithian or 259.51000 to 248.10000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Guadalupian - Lopingian | Pakistan | Foordiceras transitorium (236230) | |
| Wuchiapingian | Pakistan | Metacoceras sp. (126005) Nautilus transitorius (119654) | |
| Wuchiapingian | Iran | T. sp. (119043) | |
| Wuchiapingian - Changhsingian | Pakistan | Metacoceras wynnei (126697) | |
| Changhsingian | Iran | T. deinceps (275376) | |
| Changhsingian | Azerbaijan | T. sp. (82254) | |
| Changhsingian | China (Sichuan) | T. sp. (36221) | |
| Changhsingian | Pakistan | Nautilus transitorius, Nautilus wynnei (90251) | |
| Smithian | Pakistan | T. trachyceras (139141 139148) |