in Florida in Association with Extinct Vertebrates. 9 



Preliminary List of Mammals from, the older Stream Deposits 



at Vero. 



In the following list those species that have been found in 

 place in the older stream deposits at Vero are indicated by 

 the use of the dagger. All others have been taken not in place 

 and are here referred provisionally to the older bed as their 

 probable source, although some may prove to have been derived 

 from the next overlying deposits. In addition to the mammals, 

 which include those best known and most characteristic of the 

 North American Pleistocene, there have been found in this 

 bed, vertebrae and teeth of a large and probably extinct croco- 

 dilian, some bird, fish and batrachian bones, and a considerable 

 variety of turtles, including two very large extinct land 

 tortoises, the whole vertebrate fauna obtained including prob- 

 ably not less than twenty-five species. This fauna affords con- 

 clusive proof of the Pleistocene age of the deposits in which 

 it is found. 



Megalonyx jeffersoniif Bison sp. 



Mylodon sp. Manumit americanumf 



Ohlamytkerium septentrionalis Elephas columbif 



Equus leidyif Hydrochaerus sp. 



Equus complicatus Smilodon sp.f 



Equus litoralis Canis sp.f 



Tapirus haysii?f Edentate, indt. 



Peccary, indt. Procyori sp. 



Cameloid, indt. Vulpes pennsylvanicus ?f 



Odocoileus sp.f 



Chemical Analysis. — The chemical analysis of fossil bones 

 is usually considered as affording important contributory evi- 

 dence of age. In the present instance the opportunity for com- 

 parative analysis is particularly good, since it is possible on 

 the one hand to compare the fossil human bones with recent 

 human bones from the Indian mounds, and on the other with 

 the bones of animals, known to be of Pleistocene age, found in 

 the same bed as the human bones. Accordingly, analyses have 

 been made at the writer's request in the State Laboratory under 

 the direction of the State Chemist. The results of the analyses 

 are presented in the following table. All of the analyses 

 included in this table were made at the same time and by the 

 same methods. 



