FURTHER STUDIES AT VERO, FLORIDA 



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horizons within the creek, deposits the undisturbed individuals of 

 the extinct vertebrates occur. Creek, deposits, by their very 

 nature, imply changing conditions from time to time. 



Dr. Sellards had appealed to, as evidence against the secondary 

 nature of the fossils of the old vertebrates, a number of bone 

 assemblages, such as a tapir skull, a wolf's head, an armadillo, 



Fig. 3. — View showing a distinct dividing line between the lower creek filling 

 (No. 2) and the upper creek filling (No. 3). Lenses and irregular patches of material 

 in both formations rapidly pinch out, showing considerable scour and fill. Location 

 close to that of Fig. 2, but at a different stage in the progress of the exploratory digging 

 in March, 1917. At the base is the underlying formation No. 1; at the top is the 

 canal dump piled on the surface. Note the thinness of the creek fillings. 



turtle carapaces, etc., which he did not believe could have been 

 moved since fossilization. In going over the list one by one with 

 Dr. Sellards, it developed that the fossils of old extinct forms which 

 seemed to him to necessitate the belief that they have not been 

 rewashed, were found in formation No. 2 (the lower creek deposit) 

 and in general rather well down in it. Here must perhaps be 



