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Rhaeboceras
Taxonomy
Rhaeboceras was named by Meek (1876) [Sepkoski's age data: K Camp-u K Maes-l Sepkoski's reference number: 1107]. Its type is Ammonites halli.
It was assigned to Scaphitinae by Riccardi (1983), Cobban (1987), Grier and Grier (1998); and to Ammonoidea by Sepkoski (2002).
It was assigned to Scaphitinae by Riccardi (1983), Cobban (1987), Grier and Grier (1998); and to Ammonoidea by Sepkoski (2002).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1852 | Ammonites opalus Owen p. 579 figs. Pl 8, fig 6 |
| 1876 | Rhaeboceras Meek |
| 1983 | Rhaeboceras Riccardi p. 32 |
| 1987 | Rhaeboceras Cobban p. 6 |
| 1998 | Rhaeboceras Grier and Grier p. 473 |
| 2002 | Rhaeboceras 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.
G. †Rhaeboceras Meek 1876
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†Rhaeboceras albertense Warren 1930
†Rhaeboceras burkholderi Cobban 1987
†Rhaeboceras cedarense Grier and Grier 1998
†Rhaeboceras coloradoense Cobban 1987
†Rhaeboceras halli Meek and Hayden 1856
†Rhaeboceras mullananum Meek and Hayden 1862
†Rhaeboceras subglobosum Whiteaves 1885
†Rhaeboceras whiteavesi Russell and Landes 1937
Invalid names: Ammonites opalus Owen 1852 [nomen oblitum]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 25.6 | 19.5 | 36.3 | 23.6 | 8.76 | |
| shell diameter | 3 | 53.3 | 39.5 | 70.5 | 54.3 | 15.5 | |
| shell inflation | 3 | 10.8 | 8.30 | 13.3 | 11.4 | 2.55 |
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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 83.60000 to 66.00000 Ma
Collections (60 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian | USA (Nebraska) | R. sp. (178345) | |
| Late/Upper Campanian | Canada (Saskatchewan) | R. albertense (88483) R. halli (88501) R. subglobosus (88484 88490 88499 88500 88502) R. subglobosus, R. albertense (88482 88488) | |
| Late/Upper Campanian | Canada (Alberta) | R. subglobosus, R. albertense (88493) R. subglobosus, R. albertensis, R. whiteavesi (82638) R. whiteavesi (82642) | |
| Late/Upper Campanian | USA (Colorado) | R. halli (178347 178349 178352 178353) R. halli, R. coloradoense (178350 178351) R. subglobosum (178348 178354) | |
| Late/Upper Campanian | USA (Montana) | R. albertense (178331) R. halli (111375 178029 178319 178321 178323 178325 178326 178327 178328 178329 178330 178332 178333 178334 178335 178336 178337 178338 178339 178340 178341) R. halli, R. burkholderi (177980) R. subglobosum (175762 178316 178317 178318 178320 178324) | |
| Late/Upper Campanian | USA (Wyoming) | R. halli (178342 178343 178344) R. sp. (234311) R. sp., R. halli (233963) R. subglobosum (178346) | |
| Early/Lower Maastrichtian | USA (Montana) | R. burkholderi (178356) R. cedarense (178357 178358) R. coloradoense (178355) |