[57] F. Ameghino, "Contribucion al Conocimiento de los Mamiferos de la Republica Argentina" (1889), p. 342.

[58] F. Ameghino, op. cit. (1889), p. 317.

[59] H. Winge, "Jordfundne og nulevende Rovdyr (Carnivora) fra Lagoa Santa, Minas Geraes, Brasilien" (E. Museo Lundii, 1895), p. 31.

[60] Dr. Moreno has lately received reports of bear-like tracks in remote parts of the Cordillera, which he thinks may imply that a species of Arctotherium still lives in Patagonia.

[61] F. P. Moreno, "Revista Mus. La Plata," vol. ii. (1891). p. 56, R. Lydekker, "Anales Mus. La Plata—Paleont. Argentina," vol. ii. pt. 3 (1893), p. 77. pl. xxix.

[62] F. Ameghino, op. cit. (1889), p. 324.

[63] E. Nordenskjöld, "La Grotte du Glossotherium (Neomylodon )en Patagonie" Comptes Rendus, vol. cxxix. (1899), pp. 1216, 1217.

[64] A. Carnot, "Sur une Application de l'Analyse chimique pour fixer l'Age d'Ossements humains préhistoriques," Comptes Rendus, vol. cxv. (1892), pp. 337-339.

[65] Pangolins, armadillos, and sloths are more or less related.

[66] SB. Ges. nat. Fr. Berlin, 1892, p. 220; 1894, p. 58.