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BULLETIN 120, UNITED STATES NATIONAL MUSEUM. 



Arldt's southern Pacific land, " Oceania," is enlarged by Haug 

 (1907-1911) to a great mid-Pacific continent, but our discussion need 

 not take us into the matter of the extent of such Pacific lands. We 



postulate only a southern Pacific land strip from central and north- 

 western South America to Australia in the Cretaceous, and an 

 Antarctic union between Patagonia, Australia, and New Zealand in 

 the earlier Tertiary. 



