Spinotexasaurus was a large reptillian that lived on the lush jungle planet of Sublar Iorna in the Sublar Iorna system in the galaxy. It was feared among sentient species of the planet as being a man eater, although it was merely nothing more then a simple fish eater. Nevertheless, there were numerous accounts of it eating other species, including the native Natguts and other non-sentient species like the Tyranaraptorsaurus Rex.