. Description of new carnivores from the Miocene of western Nebraska. Carnivora, Fossil; Paleontology; Paleontology. l'ETERSOX : NEW CARNIVORES FROM MIOCENE OE WESTERN NEBRASKA 253 Measurements of Metatarsal I. Mm. Greatest length 42 Antero-posterior diameter of head 11 Transverse diameter of head 11 Transverse diameter of distal trochlea 9 Metatarsal II. — As in Daphcenus the articular facet for the mesocuneiform on the head of Mt. II is oblique, slightly concave antero-posteriorly, and rises to a high and sharp angle along the fibular border. The fibular side has two large facets for the ect
. Description of new carnivores from the Miocene of western Nebraska. Carnivora, Fossil; Paleontology; Paleontology. l'ETERSOX : NEW CARNIVORES FROM MIOCENE OE WESTERN NEBRASKA 253 Measurements of Metatarsal I. Mm. Greatest length 42 Antero-posterior diameter of head 11 Transverse diameter of head 11 Transverse diameter of distal trochlea 9 Metatarsal II. — As in Daphcenus the articular facet for the mesocuneiform on the head of Mt. II is oblique, slightly concave antero-posteriorly, and rises to a high and sharp angle along the fibular border. The fibular side has two large facets for the ectocuneiform, thus the head of Mt. II extends above those on Mt. I and III when articulated in the foot. The plantar tuberosity is of considerable size and is located on the fibular angle. Between the plantar tuberosity and the dorsal face there is on the tibial face an excavated and rough surface, against which lies the head of Mt. I, but there is no true articular facet for the latter. The shaft is much shorter and lighter than in the corresponding bones in Canis or Fells and is in proportion to the rest of the limb perhaps more nearly like that of the bears. Distally the bone is expanded transversely, the dorsal face of the trochlea be- ing spheroidal and the plantar face divided by a prominent carina as in the metacarpals. Views of Eisht Metatarsal n of I), superbus. Nat. Measurements of Metatarsal II. Mm. Greatest length 59 Antero-posterior diameter of head 16 Transverse diameter of head 10 Transverse diameter of distal end 13 Metatarsal III. — As was observed by Professor Scott in his study of Datphxmus (I. a,p. 356) the relative proportion of Mt. Ill is greater than in Dmictis, Hoplopho- neus or the viverines. It is also considerably longer proportionally than Mt. II in Canis, while actually the bone is much shorter in the genus under description. The head has a large antero-posterior diameter, the plantar tuberosity being quite large both transversely and verti
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpaleontology, bookyea
