1914] 



Stock: Mylodont Sloths of Rancho La Brea 



329 



Measurements of Dentition 





G3 



o> 



C3 



a; 











M. harlani 

 No. 21170 

 Rancho La Bi 



M. harlani 

 No. 21158 

 Rancho La Bi 



M. harlani 

 No. 21157 

 Rancho La Bi 



P. nebraseens 



Type 

 No 2780 

 A.M.N.H. Coll 



M. garmani 



Tvpe 

 No. 8429 

 M.C.Z.H.C. C. 



M 1 , anteroposterior diameter.... 



20.5 mm. 



8.5a 









19 



M 1 , transverse diameter 



20 



8.2a 









15 





41.3r 







M 2 , antero-posterior diameter.... 



28.8 



30.9 



291 

 VI. Ir 

 15.81 





29 



36 



M 2 , transverse diameter 



20.7 



15.4 





15 



17 



29.6 



M 3 , antero-posterior diameter.... 



26.4 



26.2 



26.3 





26 



M :i , transverse diameter 



26 



22 



21.3 





23 



24 



M 4 , antero-posterior diameter.... 



22 7 



23.8a 



22.4 





23 



11 



M 4 , transverse diameter 



27.7 



21.2a 



24.7 





25 



35.5 

 30.5 



M 5 , antero-posterior diameter.... 



24.8 



23.3a 



20.2ap 





30 





22.8 



18.2a 



20ap 





17 



20 







136.2r 







153 



117.2Z 



1 26.3 





133 



160 





M harlani 

 No. 21156 

 Rancho La Brea 



M harlani 



Type* i 



Mj, antero-posterior diameter.... 



23.7 



23.5a 



26.1 



26.4 



20 



25 



1VT trt) n tsvpTdp nisnnPTPT 



20.2 



14a 



18.2 



15.3ap 



14 



16 



M 2 , antero posterior diameter.... 



28.4 



26.6 



27.8a 



17.9 



24 



28 



7VT "l~vn n cvpr<iP diaTnptpT 



23.4 



20.8 



19.5a 



21.1 



22 



22.4 



M 3 , greatest diameter across 















occlusal surface 



33.8 



27.4 



26.3 



29.5 



31 



35 



M 3 , diameter of occlusal surface 















normal to greatest diameter 



20ap 



17.4 



23ap 



15.8 



17 



23 



M 4 , antero-posterior diameter.... 



50Aap 



51.6a 



56.7 



55.5 



56.4 



64 



M 4 , greatest diameter of anterior 















lobe 



29ap 





32.3 



31.6 







M 4 , greatest diameter of pos- 









terior lobe 



23.7 





24 



23.2 





23 



Length of inferior series, 







alveolar measurement 



145.3 



141.5 



149.5 





180 



156 



* Measurements after Leidy. 

 a, alveolar measurement. 

 ap, approximate. 

 r, right side. 

 I, left side. 



