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Plesiacanthoceras bellsanum
Taxonomy
Mammites bellsanus was named by Stephenson (1953). Its type specimen is USNM 105983, a shell, and it is a 3D body fossil.
It was recombined as Plesiacanthoceras bellsanum by Kennedy and Cobban (1990).
It was recombined as Plesiacanthoceras bellsanum by Kennedy and Cobban (1990).
Synonymy list
| Year | Name and author |
|---|---|
| 1953 | Mammites bellsanus Stephenson p. 204 figs. Pl 49, fig 3; pl 51, figs 8-11 |
| 1990 | Plesiacanthoceras bellsanum Kennedy and Cobban p. 403 figs. Pl 6, figs 26-28 |
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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.
†Plesiacanthoceras bellsanum Stephenson 1953
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Late/Upper Cenomanian to the top of the Cenomanian or 99.60000 to 93.90000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cenomanian | USA (Texas) | Mammites bellsanus (4648 6606) | |
| Late/Upper Cenomanian | USA (Wyoming) | Plesiacanthoceras bellsanum (167809) |