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The earliest known skeletal reconstruction of a sauropod dinosaur: Camarasaurus supremus by John A. Ryder, 1877. First displayed at the December 21, 1877 meeting of The American Philosophical Society in Philadelphia, Pennsylvania. First published in Mook (1914) as a reduced figure. Later reproduced as a larger figure in Osborn and Mook (1921: plate LXXXII) (the later version is reproduced here).

Date 1921
Author John A. Ryder (artist); Osborn and Mook (original publication)
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Original author died over 70 years ago; first publication prior to 1923 in the U.S. (public domain).


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