by John Pojeta, Jr. and Dale A. Springer 
Geologic time chart
Fossil Record
Change Through Time
Darwin's Theory
Mechanism for Change
Nature of Species
Nature of Theory
Paleontology, Geology & Evolution
Dating the Fossil Record
Examples of Evolution


References Cited

Suggested Readings
About the Authors

Paleontological Society


Untitled Document About the Authors (Previous Page || Next Page)
John Pojeta, Jr. has been an active paleontologist since 1957. He is a Scientist Emeritus with the U.S. Geological Survey (USGS) and Research Associate with the Department of Paleobiology, Smithsonian Institution. He earned his B.S. degree at Capital University, Bexley, OH, majoring in biology and chemistry and earned his M.S. and Ph.D. degrees from the University of Cincinnati, majoring in geology and paleontology. In 1963, he joined the USGS, Branch of Paleontology and Stratigraphy, where he spent his career. His research has centered on early Paleozoic mollusks, and has taken him to many American states, Antarctica, Australia, Canada, China, Czech Republic, Senegal, Sweden, United Kingdom, and elsewhere. He has been Secretary and President of The Paleontological Society; President of the Paleontological Research Institution; Chief, Branch of Paleontology and Stratigraphy, USGS; and a member of the National Academy of Sciences Committee on Paleontological Collecting.
Dale A. Springer is a paleontologist and Professor of Geosciences at Bloomsburg University in Bloomsburg, PA. She earned her B.A. degree at Lafayette College, Easton, PA, her M.S. degree at the University of Rochester, NY, and her Ph.D. at Virginia Polytechnic Institute and State University, Blacksburg. She was a visiting faculty member at Amherst and Smith Colleges before joining the Bloomsburg faculty in 1985. Her major research interest lies in understanding the factors controlling temporal and spatial changes in fossil and modern marine invertebrate communities. Dr. Springer has a long standing interest in geoscience education. She has served as Chairperson of the Paleontological Society's Education Committee, as well as on several committees of the American Geological Institute.

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Copyright ©2001 All rights reserved. American Geological Institute produced in cooperation with The Paleontological Society.