PETERSON : NEW CARNIVORES FROM MIOCENE OF WESTERN NEBRASKA 215 
The remains indicate an animal of slightly larger size when fully adult (see Figs. 
2 and 8). 
Fia. 3. Lower Jaw of Young Individual of Daphenodon superbus. % nat. size. No. 1589a. 
In section 17 of Quarry No. 1 was found a fragment of a mandibular ramus 
with the deciduous sectorial in position and the permanent pz buried in the jaw. 
The latter tooth is only partially developed. The differ- 
ent cusps of the deciduous tooth are quite sharp and 
the heel is of considerable size and completely basin- 
shaped. The fangs are excessively spread in the an- 
tero-posterior direction, due to the constant pressure 
from below by the permanent tooth, and furnish a sure 
indication of the juvenility of this tooth. Except for 
its slightly smaller size, the tooth most nearly resembles 
. . ia. " 97 h 7 3? 
that of “ Canis” anceps Scott and is here figured for _ "0 4 Daphenodon superbus 
Fragment of lower jaw of young 
the purpose of warning the student. The specimen individual with deciduous sectorial 
: in place and p, buried in the jaw 
may or may not represent Daphenodon superbus. (No. 2201), Nat. size. 
THE VERTEBRAL CoLuMN. 
The formula of the vertebral column is as follows: cervicals seven, dorsals thir- 
teen, lumbars seven, sacrals three, and caudals twenty-eight? 
With the exception of the missing region of the caudals, already referred to in the 
introduction, the vertebral column of the type specimen is in excellent preservation. 
_ Atlas. —'The atlas is quite long antero-posteriorly. Its large attenuated and 
wing-like transverse process gives the bone a transverse diameter proportionally equal 
to that in Canis. In general outline the bone is quite similar to that of the latter 
genus, but there are a number of differences shown on closer examination which 
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