Edmontosaurus annectens
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Edmontosaurus annectens, often colloquially and historically known as Anatotitan, is a species of flat-headed saurolophine hadrosaurid dinosaur from the late Maastrichtian age at the very end of the C
Oxford Edmontosaurus
Skeletons (AMNH 5730, left, and AMNH 5886, right), first mounted in the American Museum of Natural History in 1908
Outdated 1909 life restoration of Trachodon by Charles R. Knight, based on the two specimens (now classified as E. annectens) mounted in 1908 at the AMNH, New York.
Skeletal restoration of the E. annectens (then Claosaurus) holotype, by Othniel Charles Marsh.
Trachodon
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Trachodon is a dubious genus of hadrosaurid dinosaur from the Upper Cretaceous of what is now Montana in the western United States. The only species is T. mirabilis, though many others have been assig
Edmontosaurus annectens
…examples of the "duckbill" snout that is common to hadrosaurs. It has a long taxonomic history, and specimens have at times been classified as Diclonius, Trachodon, Hadrosaurus, Claosaurus, Thespesius, Anatosaurus, and Anatotitan before all being grouped together in Edmontosaurus. E. annectens has a complicated…
Trachodon mirabilis
Joseph Leidy, who named Trachodon
Skeletons displayed as Trachodon mirabilis at the American Museum of Natural History in 1916
"Trachodon mummy" discoered in 1908