THE CLIMATE OF ACADIA IN THE EARLIEST TIMES. 



11 



Sketch Map showing the Distribution of Animals in Lower 

 Cambrian Time. 





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^'Oirni ATLANTIC OCEAS-fjjJ:}^ 





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Canadian Laurentian Continental Nucleus aud the "Funda- 

 mental Gneiss" of the west of Europe, these ares are supposed to 

 have been emerged land in Cambrian time. Other smaller areas 

 on the Atlantic coast of America and in France and Germany are 

 not represented. The " deeps," or abyssal areas of the ocean, skirt 

 the border of North America about 100 or 200 miles from the coast, 

 except along the Newfoundland shore, where the deep waters are 

 thrust out a distance of 400 miles by the " Grand Bank." 



Outcrops of rocks containing the Olenellus fauna, an assemblage 

 of Cambrian animals found mostly in warm shallow seas. Three 

 outcrops in the Rocky Mountain region and four in the Appalachian 

 region in America ; outcrops also in Scotland, Norway, Sweden 

 and Russia. 



Outcrops of the Paradoxides fauna. Five sub-faunas are dis- 

 tinguishable occurring in chronological sequence, the complete 

 series known only in Sweden, which, therefore, was nearest the 

 origin or centre of dispersion of the fauna, and had the physical 

 conditions of temperature, etc., best suited to its propagation. 



