72 THE MAMMALIA. 



No less magnificent than these discoveries 

 relating to the Tertiary mammals, are the disclo- 

 sures concerning the Diluvial mammals that have 

 been made since Cuvier's day. But it is chiefly 

 South America that attracts our attention as 

 regards these. Most remarkable of all are the 

 discoveries of fauna from the Upper Tertiary and 

 Diluvial, which were found mainly in the caves 

 of the Brazilian province of Minas Geraes, and 

 also in the deposits of Argentinium and Bolivia. 

 Fossil remains from the Eocene are very rare, and 

 of these remains those of the Palseotherium and 

 Anoplotherium from Europe, point to connections 

 of which geology has as yet been unable to give 

 any explanation. Testimonies from the Miocene 

 are altogether wanting. On the other hand, the 

 later deposits show an extremely peculiar character, 

 owing to numerous, and in part colossal forms of 

 Edentata. AYhether some of their most wonderful 

 representatives, such as the giant sloth, were 



parably valuable material. We have to refer to the short papers 

 contributed to the American Naturalist, Stillman's Journal, 

 also to the Proceedings of the Amcr. Philos. Society. Marsh 

 gives a survey in the paper on the Introduction and Succession 

 f Vertebrate Lift' in A)nerica, 1877; also Cope's article, ' Mam- 

 malia Bunotheria,' in the Report upon United States Geogra- 

 phical Survey West of the One Hundredth Meridian, vol. iv. 

 Palaeontology, 1877. 



