52 PALÉOZOOLOGIE ET PALÉOPHYTOLOGIE 



The material on which are founded Episcoposaurus horridus Cope, E. 

 haplocenis Cope, Bylea plaiydon v. Huene gen., RiELvand SxuTCHBURYsp., 

 is thought to be too fragmentai to warrant a definite position. It is thought 

 that too little is known of either Steganolepis or Mesorhinus to unité them in 

 a separate Family, the Steganolepidœ, as F. v. Huene has suggested. 



E. B. Branson. 



Mehl, M. G., PoposAURUS gracilis, a New Reptile from the Triassic 

 OF Wyoming. Journ. GeoL, vol. XXIII, no 6, pp. 516-22, 2 fig. Sept.-Oct. 

 1915. 



This genus is based on an ilium, several vertebrse from varions parts 

 of the column, two femora, and several innominate bones collected by 

 Professor E. B. Branson near Lander, Wyoming. Poposaurus was a light 

 limbed, well muscled animal, probably bipedal in gait and speedy. The 

 relationships of this form are not évident. . 



E. B. Branson. 



Mehl, M. G., Caimanoidea VISHERI, a new Crocodilian from the 

 Oligocène of South Dakota. Journ. Geol.^ vol. XXIV, n» 1, pp. 47-56, 

 4 fig. Jan.-Feb. 1916. 



This Caiman-\ïke form is described from a fairly complète skull and jaws, 

 limb bones, vertébral column, and several dorsal sentes. In several respects 

 it is really a primitive Caiman and is of especial interest in that it is appa- 

 rently the only record of this group earlier than Récent. According to Dr. S. 

 S. Visher, the material came from the Titanothere zone of the Oower White 

 River Beds, 20 to 50 feet above the base. 



E. B. Branson. 



Mehl, M. G., and Schwartz, G. M., The Triassic Fossil Bearing Horizons 

 NEAR Wingate, New Mexico, with A DESCRIPTION OF Accompsosaupus 

 wingatensis Mehl. Bull. Univ. Oklahoma, N. Ser. n^ 103, Univ. Studies, 

 Ser. no 5, pp. 29-39, 3 fig., 2 pi. March 1916. 



An essentially complète pelvic girdle of Accompsosaurus is described. 

 The marked différence between this form and the well known Phytosaur 

 and Dinosaur girdle is pointed out. In the form hère described one of the 

 marked peculiarities is in the abruptly downturned pubes, broad and plate- 

 like. 



The geological section near Fort Wingate is described and contrasted 

 with that given by C. K. Gilbert from the same région. 



E. B. Branson. 



Mehl, M. G., New or little known Phytosaurs from Arizona. Bull. 

 Univ. of Oklahoma, N. ser. n» 103, Univ. Studies, Ser. n» 5, pp. 5-28, 

 11 fig., 1 pi. Mar. 1916. 



The writer describes a large Phytosaur skull of the « crested type ». It 

 resembles somewhat the European Lophoprosopus {Phylosaurus) Kapffî and 



