54 LIFE ON THE EARTH. 



or at least prehuman datepeat bogs subterranean 

 forests sea-beaches lacustrine m arls river-sedi- 

 ments many examples of the plants, shells, insects, 

 birds and quadrupeds now existing, together with a 

 few no longer living in the same regions, as the Wolf 

 and Beaver in England, or not now living any where, 

 as the Irish Elk, Rhinoceros, Hippopotamus major, 

 Elephas primigenius, and large Lion. Below these, in 

 the deposits called Pleistocene, the proportion of 

 extinct species mixed with species still living in- 

 creases. In the Pleiocene tertiaries it is great, still 

 greater in the Meiocene, and quite predominant in 

 the Eocene, below which, in all the Mesozoic and 

 Palaeozoic Strata, there is hardly a fossil specimen of 

 a living species though it is held by several writers 

 that Terebratulina striata of the Cretaceous Strata is 

 both fossil and living, and it is not possible to dis- 

 tinguish some forms of fossil and living Foramini- 

 fera 1 . 



With the exceptions already noted, if they be 

 really such, the whole living creation, examined by 

 species, as we understand this term, ceases below 

 the Tertiary Strata. For this reason, to indicate the 

 real affinity of their organic contents to the living 

 creation, I have elsewhere called them Cvenozoic. 

 The following table will illustrate this statement 

 1 Auct. Ehrenberg, Jones, Parker. 



