[D] Gryposaurus latidens
Describer
Horner, 1992
Time
Cretaceous Late Santonian Campanian
Classification
Ornithischia Ornithopoda Hadrosauridae Hadrosaurinae Gryposaurini
Diet
Herbivore
Fossilsite
Montana, US
Fall Under
Gryposaurus
Info
Gryposaurus (Lambe, 1914) > Gryposaurus notabilis (Lambe, 1914) = \\\"Hadrosauravus\\\" (Lambert, 1990)
Gryposaurus > Gryposaurus latidens (Horner, 1992)
Gryposaurus > Gryposaurus monumentensis (Sampson & Fates 2007)
Gryposaurus > Gryposaurus incurvimanus (Parks, 1920) > \\\"Kritosaurus incurvimanus\\\" (Parks, 1920)
Holotype
AMNH 5465, partial skull and nearly complete skeleton.
Diagnosis (after Horner, 1992)
Dentary teeth shorter and wider than in other species of the genus. In addition, G. latidens possesses the following unique combination of characters: arched lateroventral margin on the maxilla; nasal arch positioned near the orbits and rising above the level of the frontals; and broad ‘U’-shaped posterior margin of the external naris. The humerus of G. latidens is larger and more robust than that of G. incurvimanus. (Sampson & Fates 2007)