UCL, GRANT MUSEUM OF ZOOLOGY / SCIENCE PHOTO LIBRARY UCL, GRANT MUSEUM OF ZOOLOGY / SCIENCE PHOTO LIBRARY
Lystrosaurus fossil. Lystrosaurus was a heavily built, herbivorous burrowing animal, about the size of a pig. It lived in the Late Permian and Middle Triassic Periods, from around 260-235 million years ago. This fossil is the remains of the cranium, jaw and pectoral girdle.
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