Question about primeval!?!?

when character danny quinn returned recently in 4.7 did he return from the rift valley or pliocene america. terror birds were native to america not africa, did danny travel through two anomalies or several anomalies as implied in his original script. he claimed he was fighting terror birds for 6 months meaning he spent aoverall a year trapped but half of which was spent in pliocene america or an area in the rift valley.