. Description of new carnivores from the Miocene of western Nebraska. Carnivora, Fossil; Paleontology; Paleontology. PETERSON: NEW CARNIVORES FROM MIOCENE OF WESTERN NEBRASKA 219 Measurements of Fourth and Fifth Cervical Vertebra. C. 4 C. 5 Mm. Mm. Antero-posterior diameter of centra 31 30 Transverse diameter of centra, posteriorly 22 22 Vertical diameter of oentra, posteriorly 15 16 Transverse diameter across transverse processes, posteriorly 55 59 Transverse diameter across prezygapophyses, posteriorly 43 43 Transverse diameter across postzygapopbyses 41 39 Sixth Cervical Vertebra. â The six
. Description of new carnivores from the Miocene of western Nebraska. Carnivora, Fossil; Paleontology; Paleontology. PETERSON: NEW CARNIVORES FROM MIOCENE OF WESTERN NEBRASKA 219 Measurements of Fourth and Fifth Cervical Vertebra. C. 4 C. 5 Mm. Mm. Antero-posterior diameter of centra 31 30 Transverse diameter of centra, posteriorly 22 22 Vertical diameter of oentra, posteriorly 15 16 Transverse diameter across transverse processes, posteriorly 55 59 Transverse diameter across prezygapophyses, posteriorly 43 43 Transverse diameter across postzygapopbyses 41 39 Sixth Cervical Vertebra. â The sixth cervical vertebra has the faces of the centrum more oblique than in any others of the cervical series, but not more opisthoccelous. The centrum is otherwise depressed and rather broad, as are the centra of all the cervicals. The ventral keel is quite prominent in the anterior region, but fades away to an evenly convex border posteriorly and is quite similar to that in Cards. The transverse process is very prominent, as in the latter genus, but the inferior lamella is divided into two parts, a small anterior and a larger posterior por- tion (see fig. 9). In the thooids this lamella forms a solid fig. 9 Sjxth cervical v'er- and thin blade, while in the alopecoids it is generally tebra of D- vperbus. J nat. slightly divided. In the cats it is divided in a greater or less degree. The vertebrarterial canal is proportionally longer than in Canis. The neural arch is broad, but does not form the connecting ledge between the pre- and postzygapophyses as prominently as in Canis; there is no excessory process devel- oped on this connecting ledge as in the latter genus, though it would appear from Professor Scott's description (/. c, p. 338) that these ledges are perhaps more promi- nent on the arches of the cervical vertebrae in the present genus than in Dapkasnus. The anterior and posterior emar- ginations on the neural arches which separate the zygapophyses in front and behind the n
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