Osborn & Lambe, 1902. Vertebrata of the Mid-Cretaceous of the North-West Territory. Can. Geol. Survey Publications Quarto series, vol. iii.
Owen, R., 1853-1877. Monographs on Fossil Reptilia. Palæontographical Society, London.
Riggs, E.S., 1901-4. Articles on Sauropoda in Field Museum of Nat. Hist. Publications, Geology.
Schuchert, Chas., 1910. Palæogeography of North America. Bull. Geol. Soc. Am., vol. xx, pp. 427-606, pll. 46-101.
Strömer von Reichenbach, E., 1912. Lehrbuch der Palæontologie, ii, Wirbelthiere (B.G. Teubner, Leipzig u. Berlin.)
Thévenin, A., 1907. Paleontologie de Madagascar, iv, Dinosaurs. Ann. de Paléont, t. ii, pp. 121-136, 2 pll.
Woodward, A.S., 1898. Vertebrate Palæontology. Cambridge Science Manuals.
Zittel (Broili u. a. rev.) 1911. Grundzuge der Palæontologie.
Zittel (Eastman transl.), 1902. Textbook of Palæontology, vol. ii, Vertebrata (except Mammals). Macmillan & Co.