322 G. E. Reecher — Reconstruction of a Cretaceous Dinosaur. 



cm 



Phalanx of III, length of third _ 3.5' 



Phalanx of III, diameter of third 7 cm 



Phalanx of III, length of fourth :!"" 



Phalanx of III, diameter of fourth _ 6.5' 



Phalanx of III, length of ungual 9' 



Phalanx of III, diameter of ungual 



cm 

 cm 

 cm 



Measurements of the Tail. 



Length 41 7" n 



Width at 8th chevron 63 cm 



Diameter of centrum in 3d caudal 8 cm 



Diameter of centrum in 30th caudal 7 cm 



Diameter of centrum in 45th caudal . . 3.5 cm 



Diameter of centram in 60th caudal 3"" 



Measurements of Ribs. 



Length of first rib 43 cm 



Length of second rib 80 cm 



Length of third rib 100 cra 



Length of fourth rib 110 cm 



Length of fifth rib 117.5 cn > 



Length of sixth rib 125 cm 



~ ~,cm 



Length of seventh rib _ 125' 



Length of eighth rib 122. 5 cm 



Length of ninth rib 112.5"" 



Length of tenth rib 97.5™ 



Length of eleventh rib 83.5 cm 



Length of twelfth rib 77.5 cm 



Length of thirteenth rib 55 cm 



Length of fourteenth rib 42.5 cm 



Length of fifteenth rib 32.5"» 



Length of sixteenth rib 30 cn \ 



Length of seventeenth rib 27.5' 



cm 



The Right Scapula (Plate XLIV, figure 1 ). — The right scapula is 

 well preserved and shows one very interesting feature. Near the 

 lower edge of the blade is an elongate elliptical hole, 8 cm in length, 

 with smooth edges, indicating that the animal received a severe 

 injury during life and completely recovered from it before death. 

 It is, of course, idle to speculate on the character of this accident, 

 yet the presence in the same beds of numerous remains of the 

 armored and horned Triceratops suggests that there may have been 

 an encounter between this Claosaurus and one of the individuals of 

 the Ceratopsida 3 . The injury to the scapula is just such a one as 

 could be made by a thrust of one of the horns of Triceratops. 



