<h1>Ripperdan, Robert Lowell</h1>
<h2>Book Chapter from <a href="https://authors.library.caltech.edu">CaltechAUTHORS</a></h2>
<ul>
<li>Ripperdan, Robert L. and Kirschvink, Joseph L. (1992) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130430-141133088">Paleomagnetic results from the Cambrian-Ordovician boundary section at Black Mountain, Georgina Basin, western Queensland, Australia</a>; ISBN 9789054100485; Global Perspectives on Ordovician Geology; 93-103</li>
<li>Kirschvink, Joseph L. and Ripperdan, Robert L. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20160309-094733984">A Case for Catastrophic True Polar Wander in the Cambrian</a></li>
</ul>