20 



PLEISTOCENE MAMMALIA. 



— - a 



Fig. 4.— Thoracic vertebrae. A ls ^ l«?f t side view ; g 1st, seen from below ; C 4th, seen from behind ; D 12th, 

 seen from above ; £ 15th, seen from right side. All ] natural size. All from Barrington and preserved in the 

 Sedgwick Museum, Cambridge, a, neural spine ; /;, neural canal ; c, prezygapophysis : d s post zygapophy sis ; 

 c, transverse process; f, surface fur articulation with head of rib ; ij, surface for articulation with tubercle of rib : 

 h, anterior face of centrum ; t, posterior face of centrum. 



Measurements of Thoracic Vertebra. 





1st. 



1th. 



7th. 



10th. 



12th. 



1 5th = 1st 

 lumbar. 





Set of mounted ver- 

 tebra- in Zool. Mus., 

 Cambridge. 



Set of mounted ver- 

 tebrae in Zool. Mus., 

 Cambridge. 



SiO-i 



Q OS -( 



a sec 



beg - 



'•: m H 

 £■- = 



3" 



2 =^ 



Hi 



111 



o> -r. ca 



M So 



> = 



— 'E 



!J1 



93 

 1715 

 5 "5 5 



s * 



x - _■ 



fs\§ 



III 



Set of mounted ver- 

 tebra in Zool. Mus., 

 Cambridge. 



Barrington, Sedg- 

 wick Mus., Cam- 

 bridge. 



1. Height from notch between 



prezygapophyses to top 



2. Width across transverse 



3. Width across prezygapo- 



physes 



23-1 

 1975 

 124 



23 3 

 1505 

 ,,5 



1625 

 19- 1 



k9'65 



15-7 



10-5 

 15-6 



- ,o 



8-4 

 17-5 



94 

 265 

 6-6 



1(1-6 

 27 -s 





