IMESOZOIC TIME — CRETACEOUS. 



853 



1432-1443. 

 6 



1438 a 



1434 a 



1434 6 



1435 a 



1436 a 



1436 6 



1436 c 



1437 d 



1487 e 



1437 a 



1438 a 



1439 a 



1441 a 



1442 



1443 



1441 c 



MoNOTEEME AND MARSUPIAL Mammais. — Fig. 1432 a, Cimolestes incisus, left lower jaw (x 2) ; 1432 6, c, 

 lower molar (x 8) ; 1432 d, e, id., canine, natural size ; 1433 a, b, c, Didelphops comptus, upper molar (x 3) ; 

 14-34 a, D. vorax, two upper molars (x 2) ; 1434 6, Didelphops, milk tooth (x 3) ; 1435 a, b, D. ferox, views 

 of right lower jaw ; 1436 a, Batodon tenuis, lower jaw (x 3) ; 1436 b, id., with last two molars (x 2) ; 1436 

 c, d, e, id., upper molar (x 3) ; 1437 a, 6, c, Stagodon validus, premolar (x 2) ; 1487 d, id., left lower canine ; 

 1437 e, id., part of lower jaw, showng canine and two molars, natural size ; 1488 a, b, Stagodon tumidus, 

 upper premolar (x 2) ; 1439 a, b, Oracodon conulus, upper premolar (x 3) ; 1440, Dipriodon lunatus, natural 

 si2e ; 1441 a, b, Halodon sculptus, right lower, fourth premolar (x 2) ; 1441 c, id., left lower incisor ; 1442, 

 Tripriodon coelatus, right upper molar (x 2) ; 1443, T. caperatus, right upper molar Cx 2). Marsh, 1892. 



