Late Triassic (230Ma) of Poland. First described in 2003, a further 20 partial skeletons have since been discovered, showing that this 2.5m long animal was lightly built and might have been facultatively bipedal, although our project will test this possiblity. Like Marasuchus, Silesaurus it was a dinosauriform; indeed, its lineage is widely considered to have been the closest known relatives to Dinosauria. It is different from Marasuchus in its larger body size, possible quadrupedalism and herbivory so it poses a useful contrast.
Silesaurus had small teeth that indicate it may have been herbivorous, and the lower jaw may also have had a beak.