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Mammacyon obtusidens
Taxonomy
Mammacyon obtusidens was named by Loomis (1936). Its type specimen is Amherst Coll. Mus. 34-41, a partial skeleton (nearly complete skull and partial postcranial skeleton), and it is a 3D body fossil. Its type locality is ACM Rosebud 2, which is in an Arikareean terrestrial horizon in South Dakota.
Synonymy list
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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.
†Mammacyon obtusidens Loomis 1936
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. M. Hunt 2011 | Distinguished from M. fero- cior by smaller size of cranium (basilar length: M. obtusidens, 25.5 cm; M. ferocior, 28 cm, table 7), postcrania, and mandibular dentition (toothrow length, ,98 vs. 120 mm, table 2), including m1–m2 lengths (M. obtusidens, 24.4, 15.5 mm; M. ferocior, 27.7, 17.3 mm) and by a much narrower p3–4 width in M. obtusidens. The two species differ in P4 and M1 dental ratios A/B and C/D (table 6). |
Measurements
No measurements are available
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| Source: subf = subfamily, subc = subclass, c = class, subp = subphylum | |||||
| References: Hunt 1998, Hendy et al. 2009, Lillegraven 1979, Ji et al. 2002, Carroll 1988 | |||||
Age range: Harrisonian or 23.10000 to 18.50000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Arikareean | USA (South Dakota) | Mammacyon obtusidens (type locality: 17442) | |
| Harrisonian | USA (Florida) | Mammacyon obtusidens (17837) |