. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. Douglass: ^'I•;R^^:nKA^Ks krom Montana 'I'ikiiarn. ;)l tions of the nasals, were put together ami it ai)i)ears that the nasals were reduced and shortened, in this respect being intermediate be- tween Hyrachyus and Frotapirus. The anterior upper i)ortion of the skull is broadly and evenly convex. The longitudinal portion of the mandible is robust, but it contracts just in front of the anterior premolar, making the symphyseal region small. The ascending portion is broad. The angle extend
. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. Douglass: ^'I•;R^^:nKA^Ks krom Montana 'I'ikiiarn. ;)l tions of the nasals, were put together ami it ai)i)ears that the nasals were reduced and shortened, in this respect being intermediate be- tween Hyrachyus and Frotapirus. The anterior upper i)ortion of the skull is broadly and evenly convex. The longitudinal portion of the mandible is robust, but it contracts just in front of the anterior premolar, making the symphyseal region small. The ascending portion is broad. The angle extends a little below the posterior lower border of the horizontal ramus. The last mo-. FlG. Hyrachyus prisciis. No. 784. Sage Creek Beds. One half natural size. lar is considerably in advance of the ascending ramus The masseteric fossa extends nearly down to the level of the molars. The animal was old and not all of the structure of the teeth can be made out on account of their worn condition. The worn surfaces of the upper incisors are oblong-oval or elliptical. They stand in a nearly vertical position as in the tapir. They are all nearly of the same size. The premolars are very much like those of //. axrarius. P' is small. P- is the only one which appears to have a tendency to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Museum; Carnegie Museum of Natural History. [Pittsburgh] : Published by authority of the Board of Trustees of the Carnegie Institute
Size: 2187px × 1142px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., booka, bookcentury1900, bookdecade1900, booksubjectnaturalhistory
