Ripperdan, Robert Lowell
Book Chapter from CaltechAUTHORS
- Ripperdan, Robert L. and Kirschvink, Joseph L. (1992) Paleomagnetic results from the Cambrian-Ordovician boundary section at Black Mountain, Georgina Basin, western Queensland, Australia; ISBN 9789054100485; Global Perspectives on Ordovician Geology; 93-103
- Kirschvink, Joseph L. and Ripperdan, Robert L. (1991) A Case for Catastrophic True Polar Wander in the Cambrian