co:ntents. 



Page 



Introduction ; , 7 



The Upper Triassic Beds of the Borders of the Staked Plains 7 



The Literature of the Triassic Vertebrates of North America 12 



A New Genus of the Stegocephalia, Buettneria perfecta 13 



Description of Desmato'suchus spurensis and the New Suborder Desmatosuchia 26 



A New Parasuchian, Promystriosuchus ehlersi 49 



New Parasuchians, Leptosuchus crosbiensis and Leptosuchus imperfecta, from Crosby County, 



Texas .61 



Description of Isolated Bones of Parasuphians 70 



Description of the Remains of Dinosaurs :.../. 78 



CoproUtes , 83 



Incertse sedis ; 84 



/I 



