GEOLOGICAL SURVEY OF THE TERRITORIES. 389 



in pairs, and of large size. In the proximal caudals the diapophyses 

 are above the middle of the sides of the centra. In one the basis of a 

 chevron is preserved. It is cylindric and striate. The zygapophysis 

 on the hinder aspect of a dorsal has a disciform articular surface di- 

 rected outwards and downwards ; the prominence of its upper face is 

 continuous with the lateral ridge of the neural spine. The anterior uj>- 

 looking surface is equally small and little divergent. 



Inches. 



Length two coossified cervicals 2.5 



Width anterior in front 1. 7 



Depth anterior in front 9 



Vertical diameter centrum dorsal 3. 42 



Transverse diameter centrum dorsal 2.7 



Antero-posterior diameter centrum dorsal, (below) . , 1. 85 



Vertical diameter centrum dorsal, (poster) 2. 98 



Transverse diameter centrum dorsal 2. 9 



Transverse diameter neural canal '. 86 



Longitudinal diameter base neural spine 1. 22 



Longitudinal diameter base diapophysis 1.2 



Length between extremities zygapopkyses, (dorsal) 2. 26 



Depth of cup of vertebrae # 63 



Length centrum anterior caudal 1. 73 



Distance between bases chevron bone, (caudal) 2. 58 



It may be observed the anterior caudals have a nearly round articu- 

 lar extremity ; one of them is a little wider than high, but they are too 

 much distorted to furnish reliable measurements. 



The portion of ilium preserved is an extremity. It is flat on one side 

 and convex on the other. The shaft is solid. The articular extremity 

 is oblique, and presents a truncate extremity, which is at right angles 

 to a short, recurved margin, which has been an insertion or articulation; 

 the flat surface is rugose distally. Long diameter of extremity, 2.75 

 inches ; of shaft, 1.9 inches. The articular faces of the extremity of 

 the femur are at an open angle with each other, and are strongly con- 

 cave iu transverse section. The femur is here very flat, with narrow mar- 

 gins; it becomes stouter with diminishing width. Distally the surface 

 is marked by grooves and small foramina. What may be tibia is the 

 basal frustum of a wedge ; the articular faces broad, the outer margin 

 narrowed ; the faces slightly concave. The inner margin is shorter 

 than the outer, and the distal part of it presents a broad, articular face. 

 Some of the tarsal bones have been already described. There are thir- 

 teen metatarsals and phalanges. They are of stout proportions and are 

 considerably constricted medially. Those of one series are square in 

 section ; those of another, transverse ; those of the third transverse 

 with one edge thinned or acuminate in section. Some of each form are 

 more elongate than others. 



Inches. 



Width femur at extremity, (restored) 8. 



Depth femur at extremity, (median) 1. 3 



Width femur four inches from extremity 6. 



Thickness femur four inches from extremity 1. 95 



Width tibia 3. 88 



Length externally 2. 6 



Width tarsi tibiale 2. IS 



Thickness tarsi tibiale 1. 52 



Length parallelopiped phalange 1. 56 



