Joachimski, Michael M. <br/><br/>
Conodont apatite 118O signatures indicate climatic cooling as a trigger of the late Devonian mass extinction 

 - Boulder, CO  Geological Society of America  August 2002 
 - pp. 711-714  ilus. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>APATITA<br/>CONODONTA<br/>DEVONICO SUPERIOR<br/>EXTINCION MASIVA<br/>ISOTOPOS DE OXIGENO<br/>PALEOTEMPERATURA