McIntosh, J. S.; Berman, D. S. (1975). “Description of the Palate and Lower Jaw of the Sauropod Dinosaur Diplodocus (Reptilia: Saurischia) with Remarks on the Nature of the Skull of Apatosaurus”. Journal of Paleontology49 (1): 187–199. JSTOR1303324.
Tschopp, E.; Mateus, O. V.; Benson, R. B. J. (2015). "A specimen-level phylogenetic analysis and taxonomic revision of Diplodocidae (Dinosauria, Sauropoda)". PeerJ. 3: e857. PMC 4393826 Freely accessible. PMID25870766. doi:10.7717/peerj.857.open access publication – free to read
Tschopp, E.; Mateus, O. V.; Benson, R. B. J. (2015). "A specimen-level phylogenetic analysis and taxonomic revision of Diplodocidae (Dinosauria, Sauropoda)". PeerJ. 3: e857. PMC 4393826 Freely accessible. PMID25870766. doi:10.7717/peerj.857.open access publication – free to read
Gilmore, C. W. (1936-02). “Osteology of Apatosaurus, with special references to specimens in the Carnegie Museum”. Memoirs of the Carnegie Museum11 (4): 1–136. OCLC16777126.