PLATE CCXXIII 



Left Astragalus of the Type of Brontops robustus Marsh 



Plate prepared under the direction of Professor Marsh. One-half natural size. (See p. 669) 



1, Anterior view; 2, medial or inner view (tibial side) ; 3, posterior view; 4, lateral or outer view (fibular side) ; 5, proximal view; 

 6, distal view, c, Ectal; c', sustentacular; c", distal facets for calcaneum; ch, cuboid facet; /, fibular facet; n, navicular 

 facet; t, tibial facet. The ligamentous attachments of the astragalus are given on page 724. 



