Peterson: Material Discovered in Uinta Basin. 79 



facets more unequal in size; tliat for the calcaneum being much the 

 broader of the two. 



The genus is provisionally referred to the subfamily Anoplotherince 

 pending the discovery of more complete material. From the unusually 

 low tarsus together with the hemispherical or carnivore-like distal 

 articulation of the metapodials it is altogether likely that the American 

 genus represents a distinct subfamily (Diplobunopsincs) which may 

 be more satisfactorily differentiated from European diplobunids 

 upon further discovery and verification of dental and cranial characters. 



Measurements. 



Type No. 2974. 



Scapula, distal end antero-posteriorly approximately 45 mm. 



transverse 25 " 



Humerus, distal end greatest transverse diameter 62 " 



greatest antero-posterior diameter 24 " 



Radius, proximal end greatest transverse diameter 32 " 



greatest antero-posterior diameter 20 " 



Ulna olecranon process, length 19 " 



length of shaft, approximately 112 " 



Carpus greatest transverse diameter 42 " 



vertical diameter at ulnar face 9 " 



Scaphoid transverse diameter 13 " 



antero-posterior 19 " 



Lunar transverse diameter 14 " 



antero-posterior diameter 18 " 



Cuneiform, transverse diameter 18 " 



Calcaneum, total length, approximately 60 " 



Cuboid transverse diameter 26 ." 



vertical diameter at fibular face 9 " 



Family ACH^NODONTID^. 



Family Characters: Dentition: f • \' f • f ; hunodont. Orbits not en- 

 closed posteriorly; limbs short; feet tetradactyl,^^ animals the size of a 

 wild boar to nearly that of an Hippopotamus. 



In this family is included Achcenodon Cope and Parahyus Marsh. 



Genus Ach^nodon Cope. 

 19. Achaenodon insolens Cope. 



Palaeontological Bulletin, No. 17, 1873, p. 2. 



Two mandibular rami, C. M. Nos. 2309 and 3183, are referred to 

 this species. No. 2309 is of the same size as the type described by 



'' The characters of the limbs and feet are obtained from Professor Osborn's 

 publication (Bull. Amer. Mus. Nat. Hist.. Vol. VH, 1895, p. 105). The skull and 

 limbs have not as yet been found together in any representative of this family. 



