[D] Triceratops hatcheri [Su]
Describer
Lull, 1905
Time
Cretaceous Late Maastrichtian
Classification
Ornithischia Genasauria Cerapoda Marginocephalia Ceratopia Neoceratopia Ceratopidae Chasmosaurinae
Diet
Herbivore
Fossilsite
Niobrara County, Lance Formation, Wyoming, US
Fall Under
Triceratops
Info
Skull
Triceratops (Marsh, 1889) = Sterrholophus flabellatus (Marsh, 1891)
Triceratops > Triceratops horridus (Marsh, 1889) = Ceratops horridus (Marsh, 1889) >> Triceratops alticornis (Marsh, 1887) Triceratops flabellatus (Marsh, 1889), Triceratops prorsus (Marsh, 1890), Triceratops serratus (Marsh, 1890), Triceratops elatus (Marsh, 1891) Triceratops calicornis (Marsh, 1898), Triceratops obtusus (Marsh, 1898), Triceratops hatcheri (Lull, 1905), Triceratops brevicornus (Hatcher, 1905), Triceratops eurycephalus (Schlaikjer, 1935), Triceratops albertensis (Sternberg, 1949)
USNM 2412, collected by J.B. Hatcher, described by Richard Swann Lull in the American Journal of Science, series 4, volume 20, pages 413-419, in 1905. The specimen is a partial skull that had has three large holes in the frill, which is a feature unknown in Triceratops. Some paleontologists therefore consider this specimen to be a pathological specimen, therefore a junior synonym of Triceratops horridus. Others consider it to be a valid species of the genus, Diceratops .