Mammalia - Perissodactyla - Brontotheriidae
Alternative combinations: Megaceratops acer, Symborodon acer, Titanotherium acer
Synonyms: Symborodon altirostris Cope 1873, Titanotherium altirostris Cope 1873
Full reference: E. D. Cope. 1873. Second notice of extinct Vertebrata from the Tertiary of the Plains. Paleontological Bulletin 15:1-6
Belongs to Megacerops according to H. F. Osborn 1929
See also Cope 1873, Cope 1873, Cope 1875, Galbreath 1953, Hay 1902, Mader 1989, Mader 1998, Osborn 1896 and Osborn 1902
Sister taxa: Megacerops assiniboiensis, Megacerops bucco, Megacerops coloradensis, Megacerops copei, Megacerops curtus, Megacerops elatus, Megacerops kuwagatarhinus, Megacerops osborni, Megacerops riggsi, Megacerops syceras, Diploclonus amplus, Symborodon ophryas, Symborodon trigonoceras, Anisacodon montanus, Teleodus avus, Allops crassicornus, Menodus hypoceras, Menodus dolichoceras, Menodus angustigenis, Menodus torvus, Menodus heloceras, Menodus giganteus, Menodus tichoceras, Brontops bicornutus, Brontops robustus, Brontops validus, Brontops dispar, Brontops brachycephalus, Brontops tyleri, Brontops selwynianus, Titanops medius, Menops marshi, Menops crassicornis, Menops bakeri, Menops walcotti, Menops serotinus, Menops varians, Titanotherium proutii
Distribution: found only at Horsetail Creek (Eocene of Colorado)
Specimen images are retrieved through the ePANDDA API.
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