A large herd of Palaeosyops came through an Eocene anomaly outside the ARC along with another herd of Uintatherium. Another anomaly leading to Uintatherium's time must have had another anomaly as Palaeosyops lived much earlier than Uintatherium. They ran into the ARC along with the Uintatherium and then they tried to herd them back through the anomaly. The team managed to get them back through by doing how the team tried to get the Columbian Mammoth back through the anomaly but didn't in Episode 2.6 by spraying some rhino urine in front of the anomaly. This made the Palaeosyops get back through by smelling the scent of it and the herd went back through and could be seen going back through its real anomaly inside the Uintatherium anomaly outside the ARC.