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Metamynodon planifrons
Taxonomy
Metamynodon planifrons was named by Scott and Osborn (1887) [genotype]. It is a 3D body fossil. It is the type species of Metamynodon.
Sister species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1887 | Metamynodon planifrons Scott and Osborn p. 165 fig. 7 |
| 1902 | Metamynodon planifrons Hay p. 642 |
| 1921 | Metamynodon rex Troxell p. 24 figs. 1, 2 |
| 1960 | Metamynodon planifrons Wood p. 100 |
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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.
†Metamynodon planifrons Scott and Osborn 1887
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Invalid names: Metamynodon rex Troxell 1921 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. B. Scott and H. F. Osborn 1887 | First upper molar with an incomplete internal cingulum. Lower median incisors small. The
molars greatly exceeding the premolars in size. |
Measurements
No measurements are available
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| Source: g = genus, subc = subclass, c = class, subp = subphylum | |||||
| References: Lillegraven 1979, Carroll 1988, Hendy et al. 2009, Ji et al. 2002, Wall 1998 | |||||
Age range: base of the Early/Lower Chadronian to the top of the Orellan or 37.20000 to 33.30000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Chadronian | USA (Wyoming) | Metamynodon planifrons (16906) | |
| Orellan | USA (South Dakota) | Metamynodon planifrons (17141) | |
| Orellan | USA (Mississippi) | Metamynodon planifrons (17071 163855) |