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Moremanoceras costatum
Taxonomy
Moremanoceras costatum was named by Cobban et al. (1989). Its type specimen is USNM 425133, a shell, and it is a 3D body fossil.
Synonymy list
| Year | Name and author |
|---|---|
| 1989 | Moremanoceras costatum Cobban et al. p. 19 figs. 19, 64a-k, 65a-d,g,h |
| 1990 | Moremanoceras costatum Kennedy and Cobban p. 388 figs. Pl 1, figs 46-48,52-54; pl 2, figs 1-35; pl 4, figs 76,77 |
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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.
†Moremanoceras costatum Cobban et al. 1989
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 15.4 | 7.20 | 33.6 | 16.2 | 9.34 | |
| shell diameter | 6 | 29.2 | 18.2 | 57.8 | 29.0 | 14.7 | |
| shell inflation | 6 | 2.10 | 0.700 | 6.20 | 2.25 | 1.96 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Late/Upper Cenomanian or 100.50000 to 93.90000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Cenomanian | USA (Wyoming) | Moremanoceras costatum (167809 175371) | |
| Late/Upper Cenomanian | USA (Montana) | Moremanoceras costatum (175372 175423) |