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Delaware Valley Paleontological Society Delaware Valley Paleontological Society Who We Are The Delaware Valley Paleontological Society is a nonprofit educational organization chartered in the Commonwealth of Pennsylvania. We are a diverse group of people ranging from amateurs to avocational and professional paleontologists brought together by our uncommon common interest. Benefits Of Membership Newsletter The Delaware Valley Paleontological Society Newsletter is published ten times each fiscal year September through June. The newsletter covers the activities of the Society as well as other items that might be of interest to our members.