Rick Alken Rick Alken @rick-alken ActivityProfile3DFriendsSpecimensGroupsForumsFiles PersonalMentionsFavoritesFriendsGroups Rick Alken became a registered member 3 years ago 3 years ago 3 years ago Rick Alken joined the group Alf Museum 3 years ago 3 years ago 3 years ago Rick Alken joined the group FOSSILblitz 3 years ago 3 years ago 3 years ago Rick Alken joined the group Museum of Fossils 3 years ago 3 years ago 3 years ago Rick Alken joined the group University of Michigan Museum of Paleontology 3 years ago 3 years ago 3 years ago Rick Alken joined the group What is it? 3 years ago 3 years ago 3 years ago