Based on:
<p>Carpenter, K. (2006). "Biggest of the big: a critical re-evaluation of the mega-sauropod Amphicoelias fragillimus." In Foster, J.R. and Lucas, S.G., eds., 2006, Paleontology and Geology of the Upper Jurassic Morrison Formation. New Mexico Museum of Natural History and Science Bulletin 36: 131–138.
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Scott A. Hartman <a rel="nofollow" class="external text" href="http://www.skeletaldrawing.com/home/2013/06/the-biggest-of-big.html?rq=diplodocus">"The biggest of the big"</a>. Skeletaldrawing.com. June 14, 2013. Retrieved April 29, 2019
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