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Cunningtoniceras johnsonanum
Taxonomy
Acanthoceras johnsonanum was named by Stephenson (1955). Its type specimen is TJSNM 108846, a shell, and it is a 3D body fossil.
It was corrected as Acanthoceras johnsonianum by Stephenson (1955); it was recombined as Cunningtoniceras johnsonianum by Kennedy et al. (1988); it was misspelled as Cunningtoniceras johnsonianum by Kennedy (1988); it was recombined as Cunningtoniceras johnsonanum by Cobban et al. (2008).
It was corrected as Acanthoceras johnsonianum by Stephenson (1955); it was recombined as Cunningtoniceras johnsonianum by Kennedy et al. (1988); it was misspelled as Cunningtoniceras johnsonianum by Kennedy (1988); it was recombined as Cunningtoniceras johnsonanum by Cobban et al. (2008).
Synonymy list
| Year | Name and author |
|---|---|
| 1955 | Acanthoceras johnsonanum Stephenson pp. 58 - 59 figs. Plate 4, figures 14-17 |
| 1955 | Acanthoceras johnsonianum Stephenson p. 58 figs. Pl 4, figs 14-17 |
| 1988 | Cunningtoniceras johnsonianum Kennedy |
| 1988 | Cunningtoniceras johnsonianum Kennedy et al. p. 38 fig. 2o,p |
| 2008 | Cunningtoniceras johnsonanum Cobban et al. p. 77 |
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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.
†Cunningtoniceras johnsonanum Stephenson 1955
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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 Middle Cenomanian to the top of the Cenomanian or 99.60000 to 93.90000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cenomanian | USA (Texas) | Acanthoceras johnsonanum (2125) | |
| Middle Cenomanian | USA (Texas) | Cunningtoniceras johnsonanum (177076) |