Sarcosuchus

As they rounded a bend, a smaller river joined theirs from the right. The swirling currents spun them around in circles. Morgan held his hands overhead like a kid on a roller coaster. Beyond the junction, the river slowed again and William used the shovel to straighten them out.

Dizzy from the spinning, Al turned to face forward once more, just missing a swarm of bubbles that surfaced behind the raft.

Sarcosuchus (giant crocodile) skull on display at the Black Hills Institute in Hill City South Dakota.