An ancient animalSourced
A skull shaped like a boomerang
Diplocaulus was an amphibian genus that lived from the Late Carboniferous into the Permian. Its skull extended sideways into a distinctive boomerang shape. It belonged to an older world, rather than being a type of dinosaur.
Even the skull alone leaves a memorable outline.
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Diplocaulus · Wikimedia contributors
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Reviewed: 2026-10-10