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Megacerops acer
Taxonomy
Megaceratops acer was named by Cope (1873). It is a 3D body fossil. Its type locality is Horsetail Creek, which is in a Chadronian terrestrial horizon in the White River Formation of Colorado.
It was recombined as Symborodon acer by Cope (1873), Cope (1875), Hay (1902) and Osborn (1902); it was recombined as Titanotherium acer by Osborn (1896); it was recombined as Megacerops acer by Osborn (1929), Galbreath (1953) and Mader (1989); it was considered a nomen dubium by Mader (1998).
It was recombined as Symborodon acer by Cope (1873), Cope (1875), Hay (1902) and Osborn (1902); it was recombined as Titanotherium acer by Osborn (1896); it was recombined as Megacerops acer by Osborn (1929), Galbreath (1953) and Mader (1989); it was considered a nomen dubium by Mader (1998).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1873 | Megaceratops acer Cope pp. 4 - 5 |
| 1873 | Symborodon altirostris Cope p. 12 |
| 1873 | Symborodon acer Cope p. 13 |
| 1875 | Symborodon acer Cope p. 488 |
| 1896 | Titanotherium acer Osborn p. 178 |
| 1902 | Symborodon acer Hay p. 637 |
| 1902 | Symborodon acer Osborn |
| 1929 | Megacerops acer Osborn |
| 1953 | Megacerops acer Galbreath |
| 1989 | Megacerops acer Mader |
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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.
†Megacerops acer Cope 1873
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Invalid names: Symborodon altirostris Cope 1873 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009, Lillegraven 1979, Mader 1998, Ji et al. 2002 | |||||
Age range: Chadronian or 37.20000 to 33.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chadronian | USA (Colorado) | Megaceratops acer (16977) |