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File:T rex juvenile skulls - Cleveland Museum of Natural History (34414441240).jpg

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A fossil cast and model of a juvenile Tyrannosaurus (formerly Nanotyrannus) on exhibit at the Cleveland Museum of Natural History in Cleveland, Ohio, in the United States.

In 1942, Cleveland Museum of Natural History paleontologist David Dunkle collected the first fossil skull of this animal in the Hell Creek Formation in Carter County, Montana. At first, it was believed that this was a small new species, eventually named Tyrannosaurus lancensis, or "Nanotyrannus". In 2001, paleontologists from the Burpee Museum in Illinois discovered "Jane" in the Hell Creek Formation in Carter County, Montana. Jane was almost complete, except for the skull. Extensive study of "Jane" led many paleontologists to believe there was no such thing as Nanotyrannus, but rather that these fossils were juvenile T. Rexes.

In 2006, a new, almost intact fossil, nicknamed "Bloody Mary", was discovered in Garfield County, Montana. The Murray family still owns the fossil, after an auction in 2013 failed to find a buyer (the asking price was a whopping $9 million). Casts of "Bloody Mary" have upended things even more, as it varies from Jane in specific, significant ways -- and yet, its skull looks like the Cleveland skull.

The museum irritatingly does not provide the name of the artist who did the model, or the date of the sculpture.
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Source T rex juvenile skulls - Cleveland Museum of Natural History
Author Tim Evanson from Cleveland Heights, Ohio, USA

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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
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This image was originally posted to Flickr by Tim Evanson at https://flickr.com/photos/23165290@N00/34414441240 (archive). It was reviewed on 6 January 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0.

6 January 2019

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current23:47, 6 January 2019Thumbnail for version as of 23:47, 6 January 20192,500 × 2,352 (4.51 MB)CallyMc (talk | contribs)Transferred from Flickr via #flickr2commons

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