286 



THE MAMMALIA. 



as far as can be judged from the often great paucity 

 of their remain-. 



Only one point stands out in this attempt to 

 throw light upon the relationships between the 



FIG. 50. Skull of Tillotherium fodiens, from above. One-fourth 

 nat. size. After Marsh. 



mammals of that early period; the indrawmg of 

 the Insectivora, of that type which has been pivtty 

 faithfully preserved from the earliest traces of 



