Kronosaurus queenslandicus
Kronosaurus, named after the Greek God of time "Kronos: belongs to a group of short-necked plesiosaurs called pliosaurs. It was the largest marine reptile living in the Eromanga Sea and may have been the largest marine reptile in the world. With teeth up to 30 cm long (most of which was embedded in the jaw) Kronosaurus was clearly a carnivore. Large fish, squid, ichthyosaurs, turtles, ammonoids, elasmosaurs and even smaller kronosaurs would have fallen prey to the top predator of the time. Skeletal pieces from some marine reptiles have been found in the gut region of kronosaur skeletons. The teeth had evolved for tearing huge chunks of flesh off prey rather than chewing.