[D] Gryposaurus notabilis [Su] [T]
Describer
Lambe, 1914
Time
Cretaceous Late Campanian
Classification
Ornithischia Ornithopoda Hadrosauridae Hadrosaurinae Gryposaurini
Diet
Herbivore
Fossilsite
Judith River Group (Wedge), Alberta, Canada
Fall Under
Gryposaurus
Info
Typespecies - Skull
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)
\\\\\\\"hook-nosed lizard\\\\\\\"
Holotype
CMN 2278, complete articulated skull.
Approximately 10 complete skulls, 12 fragmentary skulls, associated postcrania.
Revised diagnosis
Hadrosaurids of the genus Gryposaurus with the following unique combination of characters: sigmoidal lateroventral margin of the maxilla; large nasal arch located near the orbits and rising above the level of the frontals; narrow ‘U’-shaped posterior margin of the external naris; squamosal posterodorsal margin well above the level of the skull roof; infratemporal fenestra larger than the orbit; and rounded mandibular foramen. The skull of G. notabilis is generally more robust than that of Gryposaurus latidens and G. incurvimanus, but less so than that of Gryposaurus monumentensis. (Sampson & Fates 2007)