IX. A NEW CROCODILE FROM THE JURASSIC 

 OF WYOMING. 



Bv W. J. Holland, LL.D. 



In the'summer of the year 1902 Mr. C. W. Gilmore, at that time in 

 the service of the Carnegie Museum as a field collector, succeeded 

 in finding in the Freeze Out Mountains, not far from the " T. B. 

 Ranch," a number of interesting fossils, among them the skull of a 

 crocodile, which the writer provisionally refers to the genus Gonio- 

 pholis Owen,' and to which he applies a specific name in honor of the 

 discoverer. The geological horizon from which this skull came is that 

 known as the Atlantosaurus Beds, and the skull was found in a stratum 

 about eight inches above a stratum in which were found commingled 

 remains of dinosaurs belonging to the genera Morosaiirus and Dip- 

 lodocus. 



Class REPTILIA. 



OrdGx. LORICATA Merrem. 



Suborder EUSUCHIA Huxley. 



Family Goxiopholidid.e Lydekker. 



Genus Goniopholis Owen. 



Goniopholis ? gilmorei sp. nov. 



(Catalogue of Vertebrate Fossils, Carnegie Museum, No. 1339.) 



The specimen consists of a skull without the lower jaws. . It has 

 been subjected to vertical pressure and is evidently somewhat crushed, 

 so that the transverse dimensions, more particularly in the neighbor- 

 hood of the orbital and postorbital openings, are greater than they 

 would have been in life and the perpendicular dimensions are less. 

 Otherwise the skull is remarkably well preserved. The entire upper 

 surface is covered with round or angular pits from 2 to 3 mm. in 

 diameter, with intervals of about i-i^j mm. between them, formed 

 by convex reticularly arranged ridges of the bone, in this respect 

 agreeing perfectly with the generic description given by Owen. 

 The premaxillaries have not sustained much crushing ; the anterior 

 1 See Report of the Eleventh Meeting of the British Association for the Advance- 

 fnent of Science, page 7 1 • 



431 



