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Tylonautilus gratiosus
Taxonomy
Coelonautilus gratiosus was named by Girty (1909).
It was recombined as Tylonautilus gratiosus by Gordon (1964), Niko and Mapes (2016) and Niko and Mapes (2017).
It was recombined as Tylonautilus gratiosus by Gordon (1964), Niko and Mapes (2016) and Niko and Mapes (2017).
Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Coelonautilus gratiosus Girty p. 50 figs. Pl 5, figs 1-1b |
| 1964 | Tylonautilus gratiosus Gordon p. 141 figs. Pl 11, figs 5-12; text-fig 19 |
| 2016 | Tylonautilus gratiosus Niko and Mapes p. 8 fig. 2 |
| 2017 | Tylonautilus gratiosus Niko and Mapes p. 178 figs. 1.1-1.6 |
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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.
†Tylonautilus gratiosus Girty 1909
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 24.0 | |||||
| shell diameter | 1 | 59.0 | |||||
| shell inflation | 1 | 20.5 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Brigantian to the top of the Arnsbergian or 336.00000 to 323.70000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Brigantian | USA (Arkansas) | Tylonautilus gratiosus (160510 160517) | |
| Pendleian | USA (Arkansas) | Tylonautilus gratiosus (157822 157995 158022 158035 160544 175860) | |
| Arnsbergian | USA (Arkansas) | Tylonautilus gratiosus (157841 157988 185022) |