Levinton, J S <br/><br/>
The big bang of animal evolution.  [electronic resource] 

 -  Scientific American  Nov 1992 
 - 84-91 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0036-8733 
<br/><br/><label>Standard No.: </label>10.1038/scientificamerican1192-84  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Biological Evolution<br/>Invertebrates<br/>Paleontology<br/>Vertebrates