PALEOGEOGRAPHIC MAPS OF NORTH AMERICA 
ret 
° 
O 
eet 
SQN 
e 
LOWER CRETACEOUS 
ox5 
7 
ae 
LEGEND 
OCEANIC BASINS 
NORTH AMERICA 
ec 
bw 50-0 
err 
06% 
POCOS 
oO 
MARINE WATERS (EPICONTINENTAL) 
SEA OR LAND, MORE LIKELY SEA 
LAND OR SEA, MORE LIKELY LAND 
LANDS 
QOOs9 
ares 
WO 
ANN 
NS 
WS 
SOMETIMES 
DIMENTS 
10) 
90° 
CONTINENTAL DEPOSITS, 
INCLUDING MARINE 8S 
POLAR 
EQUATORIAL 
INDETERMINATE AREAS 
MARINE CURRENTS 
