Arothron is a genus of pufferfish that belongs to the family Tetraodontidae. These species are sometimes kept in aquaria.

The oldest described specimens of this genus are dated to the early Pleistocene epoch around 1.95-1.35 million years ago. They were uncovered in the Liuchungchi Formation in southern Taiwan. They are semi-articulated specimens with nearly complete skulls that show characteristic beak-like jaws.

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