Researchers at the University of Chicago and McGill University have unearthed three new species of prehistoric crocodiles, including a 20-foot croc nicknamed “BoarCroc” (pictured above) because of its three sets of fangs that resemble wild boar tusks.

Unlike their present-day brethren, these species of crocodiles were adept land animals that could stand upright. A second reptilian dubbed “PancakeCroc” due to its flat head was also 20-feet-long and preyed on fish.

The third crocodile named “RatCroc” was a 3-foot-long plant and grub-eater with a pair of buckteeth in its lower jaw used to dig for food. Crocodiles date back about 240 million years, fossils of the animals are found on every continent.