Greg Presley Greg Presley @greg-presley ActivityProfile3DFriendsSpecimensGroupsForumsFiles Name Members What is it? active 7 hours, 19 minutes ago 2,890 members Beach Fossils active 1 week, 2 days ago 1,381 members Florida’s Fossils active 1 week, 4 days ago 833 members University of Michigan Museum of Paleontology active 2 weeks, 1 day ago 676 members Shocking Shark Teeth active 1 month, 1 week ago 858 members Vacation Explorers active 3 months ago 712 members Viewing 1 - 6 of 6 groups