Kenneth Carpenter: Biggest of the big: a critical re-evaluation of the mega-sauropod Amphicoelias fragillimus Cope, 1878. In: John R. Foster, Spencer G. Lucas (Hrsg.): Paleontology and geology of the Upper Jurassic Morrison formation (= New Mexico Museum of Natural History & Science. Bulletin. 36, ISSN1524-4156). New Mexico Museum of Natural History & Science, Albuquerque NM 2006, S. 131–138, online.
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Kenneth Carpenter: Biggest of the big: a critical re-evaluation of the mega-sauropod Amphicoelias fragillimus Cope, 1878. In: John R. Foster, Spencer G. Lucas (Hrsg.): Paleontology and geology of the Upper Jurassic Morrison formation (= New Mexico Museum of Natural History & Science. Bulletin. 36, ISSN1524-4156). New Mexico Museum of Natural History & Science, Albuquerque NM 2006, S. 131–138, online.