macrauchenid Directory References Images Discover A Timeline of the World in 8 Maps What Is the Emoluments Clause? Why Doesn’t Arizona Observe Daylight Saving Time? 8 Birds That Can’t Fly Timeline of the Space Race, 1957–69 When Was the Periodic Table Invented? 10 Great Sports Rivalries Contents macrauchenid fossil mammal Ask the Chatbot a Question Ask the Chatbot a Question Learn about this topic in these articles:relationship to Litopterna In litopternSome of the macrauchenids survived the intrusion of more advanced mammals from North America and persisted well into the Pleistocene Epoch.Read More