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Peraceras profectum
Taxonomy
Aceratherium profectum was named by Matthew (1899). Its type locality is Martin Canyon Quarry A, which is in a Hemingfordian channel horizon in the Pawnee Creek Formation of Colorado.
It was recombined as Aphelops profectus by Matthew (1901), Hay (1902), Osborn (1904) and Galbreath (1953); it was recombined as Peraceras profectum by Prothero and Manning (1987) and Prothero (2005).
It was recombined as Aphelops profectus by Matthew (1901), Hay (1902), Osborn (1904) and Galbreath (1953); it was recombined as Peraceras profectum by Prothero and Manning (1987) and Prothero (2005).
Synonyms
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Synonymy list
Year | Name and author |
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1899 | Aceratherium profectum Matthew |
1901 | Aphelops profectus Matthew |
1902 | Aphelops profectus Hay p. 646 |
1903 | Aphelops ceratorhinus Douglass |
1904 | Aphelops profectus Osborn |
1904 | Aphelops brachyodus Osborn p. 322 fig. 19 |
1908 | Aphelops montanus Douglass p. 256 |
1908 | Aphelops ceratorhinus Douglass p. 260 |
1953 | Aphelops profectus Galbreath |
1977 | Diceratherium jamberi Tanner |
1987 | Peraceras profectum Prothero and Manning |
2005 | Peraceras profectum Prothero p. 84 |
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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.
†Peraceras profectum Matthew 1899
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Invalid names: Aphelops brachyodus Osborn 1904 [synonym], Aphelops ceratorhinus Douglass 1903 [synonym], Aphelops montanus Douglass 1908 [synonym], Diceratherium jamberi Tanner 1977 [synonym]
Diagnosis
Reference | Diagnosis | |
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E. Douglass 1908 (Aphelops montanus) | Skull long (dolichocephalic); supraorbital region nol broad; nasals long and tapering, not laterally compressed and not possessing horn-rugosities; posttympanic rounded, not wing-like as in Aphelops ceratorhinus; teeth brachydont or brachyhypsodont; number of premolars complete (4); all the upper cheek teeth except P1 having crotchets, and all except M1 and M2 with antecrochets; limbs long and slender for so large a rhinoceros. |