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Rhaeboceras coloradoense
Taxonomy
Rhaeboceras coloradoense was named by Cobban (1987). Its type specimen is USNM 413044, a shell, and it is a 3D body fossil. Its type locality is USGS Mesozoic 16093, Reservoir No. 3, which is in a Campanian marine sandstone in the Pierre Shale Formation of Colorado.
Synonymy list
| Year | Name and author |
|---|---|
| 1987 | Rhaeboceras coloradoense Cobban p. 11 figs. Pl 6, figs 16-21; pl 7, figs 4-6; text-fig 5 |
| 1992 | Rhaeboceras coloradoense Grier et al. p. 521 figs. 2.1, 3 |
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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.
†Rhaeboceras coloradoense Cobban 1987
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 36.3 | |||||
| shell diameter | 1 | 70.5 | |||||
| shell inflation | 1 | 13.3 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Late/Upper Campanian to the top of the Early/Lower Maastrichtian or 83.50000 to 66.00000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian | USA (Colorado) | Rhaeboceras coloradoense (type locality: 178350 178351) | |
| Early/Lower Maastrichtian | USA (Montana) | Rhaeboceras coloradoense (178355) |