19H5] Merriam- Stock- Moody : An American Pliocene Bear 



105 



Measurements op Skeletal Parts 



No. 22362 



Humerus — • 



Length from head to radial articulating surface </490 mm. 



Anteroposterior diameter of head al22 



Transverse diameter of head at tuberosities « 108.3 



Anteroposterior diameter of shaft at distal end of deltoid crest.... 81.4 



Least transverse diameter of shaft 53.6 



Width of distal end al58 



Ulna- 

 Distance from proximal end of greater sigmoid cavity to end of 



olecranon 80.3 



Greatest anteroposterior diameter at coronoid 98.6 



Greatest transverse diameter of shaft distal to greater sigmoid 



cavity 38.4 



Metacarpal 5 — 



Greatest length 103.6 



Greatest anteroposterior diameter of proximal end 39 



Transverse diameter of proximal end «32.4 



Transverse diameter at middle of shaft 21.5 



Transverse diameter of distal end c/30 



Metatarsal 2 — ■ 



Greatest length 94 



Anteroposterior diameter of proximal end o28.2 



Transverse diameter of proximal end al8.3 



Transverse diameter at middle of shaft 18 



Anteroposterior diameter at middle of shaft 12.8 



" Navicular — 



Greatest width 44.2 



Greatest depth 46 



Cuboid — ■ 



Greatest proximo-distal diameter 40.4 



Greatest transverse width a49.4 



Depth of metatarsal facet 36.8 



Width of metatarsal facet 34.2 



Phalanx 1 — 



Greatest length 61.2 



Width of proximal end 28.8 



a, approximate. 



EELATIONSHIPS 



Although the representation of dentition and skeleton of the 



Oregon Pliocene bear is scanty, the elements available for study are 



f 



fortunately among the most important that could be selected for 

 comparative study. In the dentition the second upper molar and the 

 upper earnassial have larger significance than all other members of 

 the dental series for the particular comparison before us. 



The broader relationships of the Rattlesnake bear are as clearly 

 shown by M2 and P± as they could be by M T , while the greater varia- 



