. Description of new carnivores from the Miocene of western Nebraska. Carnivora, Fossil; Paleontology; Paleontology. 224 MEMOIRS OF THE CARXEGIE MUSEUM Elcrenth Dorsal Vertebra. — The centrum .of the eleventh dorsal vertebra is longer and also of slightly greater vertical diameter than is the case in the preced- ing vertebra and, as in tbe latter, there are no facets for ribs on the posterior face. The eleventh and twelfth dorsals in the skeleton of Daphasnus felinus (No. 492) have no facets on the posterior faces, although there are instead little rounded processes which extend slightly behin
. Description of new carnivores from the Miocene of western Nebraska. Carnivora, Fossil; Paleontology; Paleontology. 224 MEMOIRS OF THE CARXEGIE MUSEUM Elcrenth Dorsal Vertebra. — The centrum .of the eleventh dorsal vertebra is longer and also of slightly greater vertical diameter than is the case in the preced- ing vertebra and, as in tbe latter, there are no facets for ribs on the posterior face. The eleventh and twelfth dorsals in the skeleton of Daphasnus felinus (No. 492) have no facets on the posterior faces, although there are instead little rounded processes which extend slightly behind the faces of the cen- Fio. 17. Eleventh Dorsal tra, but which apparently never touched the heads of the of D. .uperbus. j nat. size. ^ ^ ^^ ^ nQ articular facetg ,loticed Oil them. The characters of the neural arch, zygapophyses, and spinous process are sud- denly changed in this vertebra, and are on the whole more like those of the true lumbars. The bone is injured in the region of the transverse process, but enough is preserved to indicate its rather small size, and it is quite doubtful whether it car- ried an articular facet for the tuberculum of the rib as in Canis and other recent Carnivora. The meta- and anapophysis are more prominent than in Cards; in fact the vertebra as a whole is heavier. Judging from the base of the neural spine it was thin transversely and rather broad antero-posteriorly; it did not attain a great height, and was perhaps more or less anticlinal. Measurements of Eleventh Dorsal Vertebra. Antero-posterior diameter of centrum 26 Transverse diameter of centrnm 24 Vertical diameter of centrnm, approximately 17 Transverse diameter at transverse processes 37 Height of neural spine, approximately 15 Twelfth and Thirteenth Dorsal Vertebrae. — The twelfth and thirteenth dorsal vertebrae increase rapidly in size from the one preceding them. The twelfth is characterized by the practical absence of a transverse process, there being only a trace of a tuberc
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