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, Brontops bicornutus, Brontops selwynianus, Brontops tyleri, Brontops robustus, Brontops validus, Brontops brachycephalus, Brontops dispar, Symborodon trigonoceras, Symborodon ophryas, Anisacodon montanus, Titanotherium proutii, Allops crassicornus, Diploclonus amplus, Menodus hypoceras, Menodus heloceras, Menodus angustigenis, Menodus dolichoceras, Menodus giganteus, Menodus torvus, Menodus tichoceras, Teleodus avus, Titanops medius, Menops serotinus, Menops marshi, Menops varians, Menops walcotti, Menops crassicornis, Menops bakeri

Type specimens:

• Megacerops acer: Its type locality is Horsetail Creek, which is in a Chadronian terrestrial horizon in the White River Formation of Colorado
• Symborodon altirostris:

Distribution: found only at Horsetail Creek

Show more details

Specimen images are retrieved through the ePANDDA API.