Fortey, Richard A., <br/><br/>
Lower Ordovician trilobites of the Kirtonryggen Formation, Spitsbergen / 
by Richard A. Fortey and David L. Bruton. 
 - 1 online resource 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9781118850657 1118850653 
<br/><br/><label>Standard No.: </label>10.1002/9781118850657  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trilobites.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic books.
<br/><br/><label>LC Class. No.: </label>QE821 
<br/><br/><label>Dewey Class. No.: </label>565/.39