Research summary
Classification used here: Dicynodont synapsid. Fossils assigned to Lystrosaurus are known from Late Permian to Early Triassic (about 255–247 million years ago) and have been found in Southern Africa, Antarctica, India, Asia. The museum uses 0.6–2.5 m (about 2–8 ft) as the reference body length and describes the diet as plant-eater. Lystrosaurus was not a dinosaur. It was a dicynodont synapsid from the broad evolutionary branch that also includes mammals. Its short deep skull, downturned snout, beak and pair of tusks really do give living reconstructions a funny, memorable look. Skin, colour, body fat and any sparse hair-like covering cannot be determined directly from the known fossils.
Fossil evidence and reconstruction limits
- The size range summarises differences among species and individuals within the genus Lystrosaurus.
- Lystrosaurus may have burrowed or spent most of its time on land; studies do not yet agree on how closely it was associated with water.
- Soft tissue, grey-green colour and a stout body shape are parts of a living reconstruction that fossils cannot determine directly.
Scientific sources
Leon Made This compiled these research notes from public museum resources and scientific papers while preserving uncertainty in the reconstruction. Last reviewed 2026-09-01.
