Describer

Lambe, 1917

Time

Cretaceous Late Maastrichtian

Classification

Ornithischia Ornithopoda Hadrosauridae Hadrosaurinae Edmontosaurini

Diet

Herbivore

Fossilsite

Horseshoe Canyon Formation, St Mary River Formation, Scollard Formation, Alberta, Canada; Hell Creek Formation, Lance Formation, South Dakota, Hell Creek Formation, North Dakota, Lance Formation, Wyoming, Laramie Formation Colorado, US

Length

13 meter

Info

Genus - Typespecies - Skull

Edmontosaurus regalis (Lambe, 1917) >> Trachodon atavus (Cope, 1871 ) Agathaumas milo (Cope, 1874) Edmontosaurus > Edmontosaurus annectens (Marsh, 1892) = Claosaurus annectus (Marsh, 1892) >> Thespesius edmontonensis (Gilmore, 1924) Edmontosaurus > Edmontosaurus saskatchewanensis (Sternberg, 1926) = Thespesius saskatchewanensis (Sternberg, 1926).

Approximately 7 fully articulated skull and associated postcrania. 5-7 articulated skull elements.

\\\\\\\"Edmonton lizard\\\\\\\" (of Edmonton, Alberta, Canada) was one of the biggest duckbilled dinosaurs. With its powerfull jaws, bulky body, small forelimbs, strong hind limbs, and deep tail, it resembled an unusually large Iguanodon. But it had a flatter, more duck-like beak, hundreds of close-packed cheek teeth, and inflatable skin flaps over large nasal cavities.