1. 
   biochronology
   (from the article `Triassic Period`) ...reliable radiometric data, which are used to establish absolute age. Therefore, the relative ages of Triassic sedimentary rocks—derived from the ...
   Found op http://www.britannica.com/eb/a-z/b/66
   
   
2. 
   biochronology
   biochronology 1. In geology, the study of the age of the earth based on the relative dating of rocks and geologic events by the use of fossil evidence. 2. The dating of biological events using biostratigraphic or paleontological methods.
   Found op http://www.wordinfo.info/words/index/info/view_unit/2819/8
   
   
3. 
   Biochronology
   Biochronology is the dating of biological events using biostratigraphic or palaeontological methods. ...
   Found op http://en.wikipedia.org/wiki/Biochronology
   
   

Tip: double click on a word to show its meaning.