Name: Iguanacolossus ‭(‬Iguana colossus‭)‬.
Phonetic: Ig-wa-nah-coe-los-sus.
Named By: Andrew T.‭ ‬McDonald,‭ ‬James I.‭ ‬Kirkland,‭ ‬Donald D.‭ ‬DeBlieux,‭ ‬Scott K.‭ ‬Madsen,‭ ‬Jennifer Cavin,‭ ‬Andrew R.‭ ‬C.‭ ‬Milner‭ & ‬Lukas Panzarin‭ ‬-‭ ‬2010.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Ornithischia,‭ ‬Ornithopoda,‭ ‬Iguanodontia.
Species: I.‭ ‬fortis‭ (‬type‭)‬.
Diet: Herbivore.
Size: Roughly estimated around 9 to‭ ‬10‭ ‬meters long.
Known locations: USA‭ ‬-‭ ‬Utah‭ ‬-‭ ‬Cedar Mountain Formation.
Time period: Barremian of the Cretaceous.
Fossil representation: Partial skull and post cranial remains.

       Iguanacolossus acquired its name from its similarity to another dinosaur named Iguanodon.‭ ‬Although Iguanacolossus might not actually have been any bigger than the largest examples of Iguanodon,‭ ‬it might still have been the largest ornithopod plant eating dinosaur alive in North America at this stage of the Cretaceous,‭ ‬with the only plant‭ ‬eaters larger than this being the sauropods.

Further reading
New Basal Iguanodonts from the Cedar Mountain Formation of Utah and the Evolution of Thumb-Spiked Dinosaurs - PLoS One 5(11):e14075:1-35 - A. T. McDonald, J. I. Kirkland, D. D. DeBlieux, S. K. Madsen, J. Cavin, A. R. C. Milner & L. Panzarin - 2010.


Random favourites