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Digonioceras praecox
Taxonomy
Digonioceras praecox was named by Rulleau (2008). Its type specimen is PF Toa 607, a shell, and it is a 3D body fossil. Its type locality is Belmont d’Azergues (Lafarge quarry), Upper Toarcian, which is in a Toarcian marine marl in France.
Synonymy list
| Year | Name and author |
|---|---|
| 2008 | Digonioceras praecox Rulleau p. 64 figs. Pl 26, figs 1,2; pl 27, figs 1,3; pl 28, figs 1-3; text-figs 9/5-6 |
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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.
†Digonioceras praecox Rulleau 2008
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 53.2 | 49.0 | 57.0 | 54.0 | 4.04 | |
| shell diameter | 3 | 98.5 | 94.0 | 107.0 | 95.0 | 7.23 | |
| shell inflation | 3 | 15.1 | 11.0 | 18.0 | 17.5 | 3.91 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Late/Upper Toarcian or 180.40000 to 174.70000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Toarcian | France | Digonioceras praecox (167455 167456) | |
| Late/Upper Toarcian | France (Rhone) | Digonioceras praecox (type locality: 140483) |