Fig. 87. — Diagrammatic sketch of the fossil lizard-tailed bird, Archao- 

 pteryx macrwra, from the Lithographic Stone (Upper Jurassic) of 

 Eiehstadt, Bavaria ; about one-quarter nat. size, a, acetabulum ; 

 6, cast of brain-cavity of skull ; c, ribs ; cr, carpals ; /, femur ; fu, fur- 

 cula ; h, humerus ; i, ischium ; mt, tarsometatarsus ; p, phalanges of 

 foot ; r, radius ; sc, scapula ; t, tibia ; u, ulna ; 1, 2, phalanges of hand. 

 (Table-case 13.) 



