Edmontonia
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Edmontonia is a genus of panoplosaurin nodosaurid dinosaur from the Late Cretaceous Period. It is part of the Nodosauridae, a family within Ankylosauria. It is named after the Edmonton Formation, the unit of rock where it was found.
Restored E. rugosidens skeleton without back armour
The AMNH 5381 specimen of E. rugosidens, 1915 (first referred to Palaeoscincus by Matthew in 1922), showing the position of the dermal armour
Skull and neck armor
Horseshoe Canyon Formation
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The Horseshoe Canyon Formation is a stratigraphic unit of the Western Canada Sedimentary Basin in southwestern Alberta. It takes its name from Horseshoe Canyon, an area of badlands near Drumheller.
Horseshoe Canyon Formation at Horsethief Canyon, near Drumheller. The dark bands are coal seams.
Contact (red arrow) between the underlying marine shales of the Bearpaw Formation and the coastal Horseshoe Canyon Formation. Coal beds (black bands) are common in the Horseshoe Canyon Formation and were formed in coastal swamps.
Edmontosaurus
Hypacrosaurus