. Description of new carnivores from the Miocene of western Nebraska. Carnivora, Fossil; Paleontology; Paleontology. 248 MEMOIRS OF THE CARNEGIE MUSEUM. Fig. 44. Ant rior and Fibular Views of Calcaneum of J), superbus. Nat. size. greater developed eminence on the lower half of the palmar face in Daphosnodon. The free end of the tuber is suddenly expanded, especially laterally, and there is a well defined groove for the tendon of Achilles, as in Daphanus and the recent dogs and cats generally. There is on the outer angle of the dorsal border a long and rugose groove, which, however, is not so d
. Description of new carnivores from the Miocene of western Nebraska. Carnivora, Fossil; Paleontology; Paleontology. 248 MEMOIRS OF THE CARNEGIE MUSEUM. Fig. 44. Ant rior and Fibular Views of Calcaneum of J), superbus. Nat. size. greater developed eminence on the lower half of the palmar face in Daphosnodon. The free end of the tuber is suddenly expanded, especially laterally, and there is a well defined groove for the tendon of Achilles, as in Daphanus and the recent dogs and cats generally. There is on the outer angle of the dorsal border a long and rugose groove, which, however, is not so deep as that in the Oligocene genus. This groove is also quite conspicuous in the recent lion, while in Canis it is entirely wanting. The articular facets for the astragalus are separated as usual by the groove for the interosseous ligament, the external facet being quite oblique and more gently con- vex antero-posteriorly than in Canis, while the sustentaculum is more promi- nent, the internal facet being slightly con- cave infero-superiorly and carried well over the superior edge, not unlike what is seen in Canis. The greater process of the calcaneum is much abbreviated, so that the head of the astragalus extends well be- low the distal end, as in Dapliamus, also observed by Mr. Hatcher (/. c, p. 91). The peroneal tubercle is well developed, causing the fibular face of the bone to be quite concave supero-inferiorly. The distal end has a large facet for the cuboid, which is gently concave in all directions and pear-shaped in its general outline. The astragalus and calcaneum of Amphicyon major are represented in our col- lection by accurate casts, which display well marked differences from the present genus. In the first place the astragalus in the European form is broader and shorter in proportion ; secondly, the head is more sessile, due to the shorter neck ; thirdly, the sulcus which separates the articular facet for the tibia on the tibial face of the inner condyle in Daphos
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpaleontology, bookyea
