Macrauchenia having a really bad day in the Pleistocene. This scene »is a parody and almost certainly never happened«. Tet Zoo dollars to whomever recognises the obvious derivation. This is from the Tet Zoo article What did giant extinct vampire bats eat?
Simplified cladogram showing hypothesised relationships among the marine diploglossines. Seawasps are put 1-3 m long, while bathysaurs, sensopsians and gulping terrors all include species that exceed 10 m in length. Squamozoic at TetZoo.