Gogonasus (meaning "snout from Gogo") was a lobe-finned fish known from 3-dimensionally preserved 380 million-year-old fossils found from the Gogo Formation in Western Australia. It lived in the late Devonian period, on what was once a 1400 kilometre coral reef off the Kimberley coast surrounding the north-west of Australia. Gogonasus was a small fish reaching 30-40 cm (1 ft) in length.Its skeleton shows several features that were like those of a four-legged land animal (tetrapod).