S8 
Records of the Geological Survey of India. 
[vol. X. 
Titanosaltrus Indicus, n. gen. nobis. 
I have formed the above new genus of Dinosauria* upon the evidence of a large femur, 
and two largo posterior caudal vertebra, which are in the Indian Museum, and which were 
obtained from the Lameta group of rocks. The femur was collected by Mr. Medlicott in 
the year 1871 from the Lametas of Jabalpur; the vertebral were also obtained from Jabalpur, 
and are shortly described in Falconer’s “ Palaeontological Memoirs” (vol. 1, p. 418); the 
larger of the two is figured on a small scale iu Plate 34 of the same work. No reference was, 
however, made to their affinities or even as to their position in the vertebral series. 
I will first extract Dr. Falconer s description of these vertebra, then compare them with 
the vertebra of the other Dinosauria to which they are allied, and finally describe Mr. 
Medlicott's specimen of the femur. Dr. Falconer states: “ The larger vertebra consists of a 
compressed body, very considerably compressed sideways, and contracted in diameter between 
the articular surfaces, both in the vertical and transverse direction. The anterior articulation 
is elliptical vertically in its outline, and the cup as deep as in the Crocodilia ; the posterior 
articulating surface is of a corresponding reversed form, i. e., very convex, flattened laterally, 
the greatest convexity being towards the middle or axis. The inferior surface of the body 
at either end bears immediately behind the rim of the cup iu front, and in front of the ball 
behind a pair of surfaoes for the articulation of a chevron bone, i. e., each chevron has been 
articulated to two adjoining vertebrae. 
“ The spinous process, which is broken off (near the summit), is flattened and of con¬ 
siderable size near the base; it is given off from the body backwards at an angle of about 
45°. Between it and the body there is a semicircular niche about 1'2 inches deep. From 
the anterior part or base of the spinous process two articular apophyses are given up, nearly 
horizontally, or inclined upwards at a small angle ; and diverge, but the divergence is small. 
The articular surfaces are on the axial side. 
“ It would appear that the next anterior vertebra passed its spinous process between 
these articular surfaces ; but no marks of such articulation are seen in the spinous process of 
the vertebra. 
Dimensions. 
Extreme length of body 
Height in middle to hollow between spinous and articulating apophyses 
Height of anterior concave end 
Width of ditto 
Length of body from rim to base of ball 
Height of base of ball behind 
Transverse diamoter of ditto 
Height of body where constricted behind 
Greatest constriction of ditto 
Length of articular process 
Ditto from base of spinous process to top of ditto ... 
Length of lamina, right side ... 
Vertical diameter of spinous process 
Transverse diameter of ditto 
Inches. 
6-4 
4'9 
3-4 
2- 4 
4’1 
3- 4 
2'3 
2-8 
1'3 
2'2 
4'0 
1'8 
1-9 
0-8 
“Vertebral canal small and constricted, not a trace of a suture remaining. 
“ The other vertebra (unfigured) is shorter and less perfect. The spinous process is 
broken off at the base, and the articular processes, if any, are gone. The body is shorter 
and less constricted; there are the same ball and socket ends, but they are not so deep ; 
there are also the two surfaces for chevron bones,” 
* The term Dinosauria is here used in a general sense, as comprehending both the Omilhoscelida and the 
Sauroscelida of Professor Huxley. 
