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The Edmontosaurus mummy SMF R 4036 is a dinosaur fossil in the collection of the Senckenberg Museum in Frankfurt, Germany. It was found in 1910 in Wyoming, United States, in rocks of the Lance Formation that are about 66 million years old. The mummy is ascribed to the species Edmontosaurus annectens. It comprises a nearly complete skeleton found wrapped in skin impressions, a rare case of preservation for which the term dinosaur mummy has been used. It is assumed that the individual died during