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. Description of new carnivores from the Miocene of western Nebraska. Carnivora, Fossil; Paleontology; Paleontology. 226 MEMOIRS OF THE CARNEGIE MUSEUM is a curious feature of this genus which seems to have departed from Daphcenus, Temnocyon,u and also from the recent canids generally, while, according to observa- tions by Dr. Matthew (/. c, p. 367) upon Miacis, its affinity with regard to the short transverse processes would seem to recall the earlier tertiary types. As in Daphcemis the metapophyses, anapophyses, and neural spines are proportionally more robust than those in the recent dogs.
. Description of new carnivores from the Miocene of western Nebraska. Carnivora, Fossil; Paleontology; Paleontology. 226 MEMOIRS OF THE CARNEGIE MUSEUM is a curious feature of this genus which seems to have departed from Daphcenus, Temnocyon,u and also from the recent canids generally, while, according to observa- tions by Dr. Matthew (/. c, p. 367) upon Miacis, its affinity with regard to the short transverse processes would seem to recall the earlier tertiary types. As in Daphcemis the metapophyses, anapophyses, and neural spines are proportionally more robust than those in the recent dogs. The meta- and anapophyses are heaviest on the first lumbar and gradually decrease in size backwards, the anapophysis of the fifth lumbar being quite small. Except on the first, second, and seventh lumbars the neural spines are broken off superiorly, but enough remains to ascertain their great anteroposterior diameters, which are not unlike those in canids generally. Measurements of Second and Fifth Lumbab Vertebra. l. 2 L. 5 Mm. Mm. Antero-posterior diameter of centra 36 40 Transverse diameter of centra posteriorly 27 29 Vertical diameter of centra posteriorly 19 ]9 Transverse diameter of transverse processes 50 72 Length of transverse processes from base (posterior) to tip end 14 24 Height of nearal spine 18 ? Sixth Lumbar Vertebra.—The sixth lumbar ver- tebra is characterized by the absence or very rudi- mentary development of anapophyses, and also by a considerable transverse broadening of the centrum posteriorly. There is otherwise very little difference between this vertebra and the one preceding it. Flo. 21. Sixth Lumbar Vertebra of D. superbus. \ nat. size. Measurements of Sixth Lumbar Vertebra. Mm. Antero-posterior diameter of centrum 40 Transverse diameter of centrum 31 Vertical diameter of centrum 19 Transverse diameter at transverse processes, approximately 84 Height of neural spine, approximately 45 Seventh Lumbar Vertebra.—The centrum of the seventh lumbar vert
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpaleontology, bookyea