PLATE CXCVI 



Axis of the Type of Brontops robusttjs Marsh 



Plate prepared under the direction of Professor Marsh. One fourth natural size. (See p. 667) 



1, Lateral view, left side; 2, superior view; 3, anterior view; 4, inferior view; 5, posterior view, a, Facet for atlas;/, foramen for 

 vertebral artery; n, neural canal; o, odontoid process; z', postzygapophysis. The principal muscle and ligament attachments 

 of this vertebra are given on page 713. 



