THE ILLINOIAN ICE INVASION 315 



Equus complicatus { — americanus) Bootherium bombifrons 



" fratermts Symbos cavifrons 



Tapirus haysii Bison antiquus 

 Plalygonus compressus " bison 



Odocoileus lirginianus Mammut americanum 



Centos canadensis Elepkas primigenius 



Cervalces scotti Neotoma magister 



Ursus americanus 



Several horizons are evidently represented at Big Bone Lick, as suggested 

 by Foster and Hay. The lists which have been published do not discriminate 

 and some of the material was undoubtedly secured from a higher level and 

 therefore referable to a later time. Hay 148 believes that the deposit contains 

 animals which have been mired from Illinoian (Sangamon) time to the present. 

 Lyell states 149 that the bison resorted to the springs up to a recent date. He 

 also mentions the presence of fresh water and land shells with the bones, the 

 species being the same as now found in this region. The Bison bison, li0 accord- 

 ing to Shaler, is found only in the superficial strata and hence referable to a 

 late period, possibly post-Wisconsin. Some of the deer also belong to a later 

 period than the Sangamon. As the different species have not been separated 

 stratigraphically, they have been listed here together for the sake of com- 

 pleteness. Bison latijrons was reported by Peale 151 from a small creek about a 

 dozen miles north of Big Bone Lick. It probably belongs to the same age 

 as the other fossils at the previously mentioned locality. 



Other vertebrate remains bave been reported from Ohio as follows: 



Mammut americanum. In bank of Raccoon Creek, near Granville. 1 " 



Near Nashport, on gravel, at depth of 14 

 feet. 153 Muskingham County, in muck 25 feet. 



Castoroides ohioensis. Nashport, below the surface. 154 Also 14 feet below 



the surface on bed of pebbles and gravel. 143 



Equus species. " Excavation for outer wall of penitentiary, Colum- 



bus. "^ 



"' Geol. Surv. Ind., 36th An. Rep., p. 624. 



«• Amer. Journ. Sci., (i), XL VI, pp. 320-323, 1843. 



uo Allen, American Bisons, pp. 53, 236. 



U1 Philos. Mag., XV, pp. 325-327. 



m Hicks, Amer. Journ. Sci., (iii), V, p. 79. This locality is on the edge of the Wisconsin 

 drift, and the remains may be of later age. 



« Foster, op. cit., (i), XXXI, p. SO, 1837. 



m Klippart, Cin. Quart. Journ. Sci., II, p. 154. 



144 Op. cit.; the horizon is doubtful, but the inference is that it is Sangamon, as horses 

 have not been found in later deposits. 



