Foetodon

In King Kong, Foetodon superficially resembles a large lizard with a short blunt head. It has crocodilian osteoderms running down its neck and back and crocodilian webbed feet. In the film, they are shown to have what appears to be a mouth disease. It is explained in The World of Kong: A Natural History of Skull Island that this is a mouth infection contracted from leaf litter. This infection would disfigure the animal so much so that Foetodon's skull would frequently bear cruel scars because of it. In the MonsterVerse they have much shorter faces and the osteoderms on their back resemble dorsal plates to an extent.


 * Crocodile Tears: In Godzilla vs. Kong, the Foetodon is more rotund in physique with large, amber-coloured eyes and shorter legs. Its osteoderms are also more jagged in shape, and somewhat resemble those found on the Hellhawks, another species inhabiting the Hollow Earth.
 * Croc Swamp Hideout: Despite being land-based predators, the Foetodons in King Kong sported a large and powerful tail that was necessary for their largely aquatic young. On land their powerful back legs launched them forward out of dug out, covered pits along jungle game trails to crush whatever prey came near with their horrible jaws. Their place as ambush predators was necessitated by their poor eyesight. Because of this, Foetodon were not particular in their prey and would attack whatever came their way, depending on their powerful bite to take it down.
 * Creature Features
 * Name: Foetodon ferreus
 * Species: Archosaur
 * Status: Deceased (eaten by Vastatosaurus)
 * Prey: Hadrosaurs (such as Ligocristus)

Dino Crisis
A Foetodon ate the carcass of a Ligocristus in the jungle, and when Ann Darrow saw it, she backed away to hide behind a tree, where another Foetodon spotted her and snapped at her. It missed, but started to chase her, while the other Foetodon followed. As the two reptiles continued to chase her, Darrow fled into a log. One of the Foetodon barged into the log, splitting the bark as it struggled. However, it was bitten and lifted off the ground by a juvenile Vastatosaurus rex as the other Foetodon watched before running away into the jungle. The carcass hung limply in the jaws of the Vastatosaurus as it chased after Darrow. The Vastatosaurus thrashed its head around, causing the Foetodon's head to fall off of its body. The larger dinosaur then re-positioned the carcass to swallow it relatively whole. After turning its attention to Darrow, it soon found itself in battle against King Kong. Another Vastatosaurus seemingly caught and ate the second Foetodon before joining the fight.


 * T-Rex Returns: When Foetodon gets eaten by male Vastatosaurus while fighting with King Kong.
 * Tooth and Claw: Foetodon tries to catch the prey and eat those flesh and bones of Ligocristus.
 * Did you Know? Foetodon ferrus meaning "cruel sinking tooth"