360 



FOUNDATIONS OF BIOLOGY 



bearing a pair of quill feathers; w,ith a four-fingered rep- 

 tilian hand; and so on. In brief, just such a creature as the 

 imagination of an evolutionist would picture for a primitive 

 Bird has been disclosed by the lithographic stone quarries of 



Fia. 188. Reptilian Bird, Arckaeopteryx, (A), compared with Pigeon, 

 Columba livia (B). (From Lull.) 



Bavaria, representing the later Jurassic period. (Fig. 188.) 



The ancestry of the modern Horse has been the most im- 

 pressive 'fossil pedigree/ ever since Professor Marsh collected 

 the famous series of fossil skeletons from the western United 



