HUMAN REMAINS AND ASSOCIATED FOSSILS. 
M7 
at Vero. The type specimen is a humerus. Fla. Surv. coll. 5961 : 
Paratvpes, right and left metacarpals, 6781 and 7022; and part of a 
corocoid, 6782. 
MAMMALS. 
The mammals are more abundant in genera and species as well 
as in the number of individuals than any other class. Twenty-five 
mammalian species have been recognized from stratum No. 2 and 
the number is being constantly added to as collecting progresses. 
A striking feature of the fauna of this horizon is the number of 
large extinct mammals found in it. A list of the mammals from 
this horizon is given on page 158. 
PLANT AND ANIMAL FOSSILS FROM STRATUM NO. 3 OF THE 
SECTION. 
Fossil plants are more abundant in stratum No. 3 than in the 
older deposit, the muck beds of this stratum being better adapted 
to their preservation. Acorn cups, acorns and other seeds are 
numerous, as are stems and pieces of limbs; in places also where 
the conditions are favorable, leaves are well preserved. The plant 
remains indicate a diversified flora representing a hammock type 
of vegetation, the term “hammock” being used, in Florida to apply 
to a mixed timber growth which usually includes a number of de¬ 
ciduous species. This type of vegetation occupies limited areas 
and contrasts with the pine lands which are extensive. 
Invertebrate fossils are rare in this horizon, although occasion¬ 
ally a shell is found in the fresh-water marl which in places lies 
at the top of the section. 
The fish, batrachian, and reptillian fossils of this horizon are 
apparently similar to those of stratum No. 2. Snake vertebrae are 
abundant. An alligator present is probably Alligator mississippien- 
sis. Of the turtles which are abundant in number of specimens, 
Dr. Hay recognizes the follbwing species :* 
Terrapene innoxia. Pseudemys floridana persimilis. 
Terrapene antipex. Gopherus polyphemus 
Chelydra sculpta. Chelonia mydas 
Of these turtles the first three mentioned are recognized as 
new species and are not known in the existing fauna. The re- 
*On the basis of the turtles Dr. O. P. Hay regards stratum No. 3 of this sec¬ 
tion as of Pleistocene age and representing not the later part of the Pleistocene 
(this volume, p. 76). , 
