28 Timothy S. Young and Joshua Laerm 



Family Felidae 

 Felis sp. indet. 



Material— Left radius, UGAMNH1740. 



Remarks — This specimen is a large Felis, but it is too worn for 

 positive identification. Webb (1974a) states that several species of 

 Felis are known from the Late Pleistocene of Florida, and include F. 

 atrox Leidy, F. concolor Linnaeus, F. onca (Linnaeus), F. pardalis 

 Linnaeus, F. rufus Schreber, and F. yagouaroundi Geoff roy. Another 

 possibility is Felis amnicola, a new, small cat described by Gillette 

 (1976a). The description is based on several specimens from various 

 localities in Florida and possibly Georgia. 



Smilodon sp. indet. 



Material— Left scapho-lunar, UGAMNH1748. 



Remarks — The sabertooth cats are reported from a dozen or more 

 late Pleistocene sites in Florida (Webb 1974a, Kurten and 

 Anderson 1980). Slaughter (1963) proposed a series of successional 

 changes in Smilodon species throughout the North American 

 Pleistocene. Webb (1974a) concurs that records of Smilodon in Florida 

 support such a successional outline: Smilodon gracilis is a late Blancan 

 and early Irvingtonian; S. fatalis is representative of late Irvingtonian 

 and early Rancholabrean sites; and that S. floridanus is typical of the 

 late Rancholabrean. The temporal span reflected by other faunal elements 

 from the St. Marks would be more suggestive of the latter species; 

 however, given the similarity of these species, more precise identification 

 is impossible from the limited available material. Smilodon could probably 

 have been found in habitats ranging from grassland to woodland (Merriam 

 and Stock 1932, Lundelius et al. 1983). 



Order Proboscidea 

 Proboscidea gen. et sp. indet. 

 Material— Sesamoid, UGAMNH1098; tusk fragment, UF21255; skull 

 fragment, UF21256; leg fragment, UF21257; vertebral fragment UF21258. 

 Remarks — These specimens are very definitely proboscidean, but 

 assignment to species is impossible. 



Family Mammutidae 



Mammut americanum (Kerr) 



American Mastodon 



Material — Axis fragment, UGAMNH1614; tooth fragments, 

 UGAMNH1612, 1613, 1615, 1616, UF21267 and 21276; tusk fragments, 

 UF21277-21278; proximal humerus, UF21279; calcaneus, UF21290. 



