Copeland, M.J. <br/><br/>
A lower Middle Ordovician microfauna from Ottawa, Ontario 

 - Ottawa, Ontario  Geological Survey of Canada  1989 
 - pp. 1-19 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CONODONTA<br/>ORDOVICICO<br/>OSTRACODA
<br/><br/><label>Subjects--Geographic Terms: </label><br/>CANADA