Paleogammarus Directory References Discover 12 Greek Gods and Goddesses What Is an Aftershock? The Top COVID-19 Vaccine Myths Spreading Online The Seven Sacraments of the Roman Catholic church The Time Julius Caesar Was Captured by Pirates Who Really Invented Baseball? The 10 Greatest Basketball Players of All Time Contents Ask the Chatbot a Question Paleogammarus fossil crustacean Ask the Chatbot a Question Learn about this topic in these articles:amphipods In amphipod…recorded, the earliest of which, Paleogammarus, is found in Baltic amber of the Early Eocene epoch (55.8 to 48.6 million years ago); it closely resembles a recent genus, Crangonyx.Read More Britannica ChatbotChatbot answers are created from Britannica articles using AI. This is a beta feature. AI answers may contain errors. Please verify important information using Britannica articles. About Britannica AI.