108 



D. E. SAVAGE 



dinosaur!); others spurn the labor-consuming giants for micro- 

 sized remains; others collect only complete skulls or skeletons and 

 discard individuals represented by only fragmentary specimens. 



OCHOtON^ 



^^^ 



StsO' 



>^ 



,9?^^ 



p£POGN^^HOS 

 GEOMYID 

 FELIS 

 MACHAIROOUS 



'•^^/ 



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'^Op., 



Fig. 3. Faunal analysis diagram of the quarry sample from McKay 

 Reservoir, Oregon. The divisions of the circle graph represent relative 

 abundance of the mammals indicated. The radial bar graph represents 

 the number of specimens per individual. The heavy concentric line in- 

 cludes genera assigned to the proximal community. Reproduced from 

 Shotwell (1955, p. 333). 



Shotwell (1955) demonstrated, as in Fig. 3, that useful census 

 and ecological interpretations may be derived from a meticulously 

 collected fossil sample. Such a sample will be composed of all the 

 obtainable bones and bits of bones from a given site. Shotwell pro- 



