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Cymatonautilus
Taxonomy
Cymatonautilus was named by Spath (1927) [Sepkoski's age data: J Call Sepkoski's reference number: 524].
It was assigned to Cymatoceratidae by Kobayashi (1954), Teichert et al. (1964); and to Nautilida by Sepkoski (2002).
It was assigned to Cymatoceratidae by Kobayashi (1954), Teichert et al. (1964); and to Nautilida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1927 | Cymatonautilus Spath |
| 1954 | Cymatonautilus Kobayashi p. 16 |
| 1964 | Cymatonautilus Teichert et al. p. 453 |
| 2002 | Cymatonautilus Sepkoski |
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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.
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 30.9 | 28.0 | 34.0 | 31.0 | 4.24 | |
| shell diameter | 2 | 62.3 | 58.0 | 67.0 | 62.5 | 6.36 | |
| shell inflation | 2 | 17.4 | 16.0 | 19.0 | 17.5 | 2.12 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Early/Lower Callovian or 165.30000 to 161.50000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Callovian | Saudi Arabia | C. collignoni (48585) | |
| Early/Lower Callovian | India (Gujarat) | C. collignoni (167388) | |
| Middle Callovian | India (Gujarat) | C. collignoni (167363) |