PALEOBIOGEOGRAPHY OF THE MARINE REALM 



155 



100% 



75- 



Surety 

 of 50 

 assertion 



25- 



Potency of evidence 

 Fig. 1. Human factor in communication. 



100% 



100% 



TIME 

 SPAN 0/ 



HABITAT 

 VARIATION 



GEOGRAPHIC RANGE 

 Fig. 2. External conditions affecting the application of paleobiological data. 



