James "Jim" Henry Madsen Jr. | |
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Born | 28 July 1932 |
Died | 28 November 2009 Salt Lake City, Utah | (aged 77)
Nationality | American |
Alma mater | University of Utah |
Known for | paleontology, Allosaurus, Ceratosaurus |
Parent(s) | James Henry Madsen Sr., Eva Anna Weidner |
James "Jim" Henry Madsen Jr. (July 28, 1932 – November 28, 2009) was an American vertebrate paleontologist and geologist and main leader of excavations at the Cleveland-Lloyd Dinosaur Quarry in the 1960s. Madsen primarily worked to describe skeletons of Allosaurus from the quarry, eventually getting the site to become a National Natural Landmark in 1965 and a national monument after his death.[1][2][3]