PELECYPOD-GRAPTOLITE ASSOCIATION IN THE OLD WORLD SILURIAN

• 1 January 1967
• journal article
• Published by Geological Society of America in GSA Bulletin
• Vol. 78  (12)
• https://doi.org/10.1130/0016-7606(1967)78[1515:paitow]2.0.co;2

Abstract