Sinclair: marsupialia of the santa cruz beds. 
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at widest part 
at widest part 
Palate, width between canines ..... 
“ “ “Mi 
“ length from root of median incisor to palato-narial 
Nasals, length ........ 
width at anterior extremity .... 
“ “ posterior expansion .... 
Upper dentition, length from median incisor to MA 
“ “ “ of space occupied by premolars 
“ “ “ “ “ “ “ molars . 
Median incisor, width of crown .... 
Lateral “ “ “ “ . 
Upper canine, antero-posterior diameter at alveolar border 
“ “ transverse “ “ “ “ 
“ “ length of crown . 
Anterior premolar, antero-posterior diameter 
“ “ transverse “ 
Median “ antero-posterior 
“ “ transverse 
Posterior “ antero-posterior 
“ “ transverse 
M-i, antero-posterior diameter 
“ transverse “ 
M£, antero-posterior 
“ transverse 
M^, antero-posterior 
“ transverse 
M^, antero-posterior 
“ transverse 
Atlas, transverse breadth across anterior cotyles 
“ width of neural arch .... 
“ “ “ intercentrum including median process 
Axis, length of centrum including odontoid 
“ “ “ odontoid ..... 
“ width over anterior cotyles 
“ height of neural spine above centrum 
Third cervical, length of centrum 
“ “ width across transverse processes 
“ “ height of neural spine above centrum 
length of centrum 
width across transverse processes 
height of neural spine above centrum 
length of centrum 
width across transverse processes 
Sternal segments, average length 
border 
U 
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.065 
.092 
.061 
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.049 
.100 
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.0145 
.010 
.027 
.008 
.004 
.009 
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.0107 
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.0125 
.0083 
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