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Cheltonia
Taxonomy
Cheltonia is a genus. It is not extant.
It was assigned to Ammonoidea by Sepkoski (2002); and to Oxynoticeratidae by Howarth (2013).
It was assigned to Ammonoidea by Sepkoski (2002); and to Oxynoticeratidae by Howarth (2013).
Species
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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. †Cheltonia
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†Cheltonia acciptris Buckman 1923
†Cheltonia galeata Hoffmann 1944
†Cheltonia oustense Rakús and Guex 2002
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 10.3 | 7.80 | 13.6 | 10.7 | 4.10 | |
| shell diameter | 2 | 25.5 | 21.4 | 30.3 | 25.9 | 6.29 | |
| shell inflation | 2 | 5.48 | 5.00 | 6.00 | 5.50 | 0.707 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Collections (21 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Sinemurian | Morocco | C. dennyi (200473 200474 200475 200476 200505 200510 200511 200585) C. dennyi, C. sp. (200587) C. sp. (200525 200534 200581 200610) | |
| Oxynotum | Tunisia | C. galeata (170512) | |
| Oxynotum | United Kingdom (Somerset) | C. acciptris (159468 159469 159470 159471 159473 159474) | |
| Turneri - Obtusum | Tunisia | C. oustense (170503) |