AN EARLY BURST IN BRACHIOPOD EVOLUTION CORRESPONDING WITH SIGNIFICANT CLIMATIC SHIFTS DURING THE GREAT ORDOVICIAN BIODIVERSIFICATION EVENT
CONGREVE, Curtis, Marine Earth and Atmospheric Sciences, North Carolina State University, Raleigh, NC 27606, PATZKOWSKY, Mark, 538 Westview Avenue, State College, PA 16803 and WAGNER, Peter, Earth & Atmospheric Sciences and School of Biological Sciences, University of Nebraska, Lincoln, Lincoln, NE 68588-0340