The river system was also home to a giant, car-sized coelacanth, a monster sawfish, and the skies over the river system were filled with pterosaurs, flying reptiles.
Sistem sungai tersebut juga ditinggali coelacanth raksasa sebesar mobil, seekor ikan gergaji raksasa, dan langit di atas sistem sungai ini dipenuhi pterosaurus, reptil terbang.