Ignavusaurus is a genus of basal sauropodomorph dinosaur that lived during the Early Jurassic in Lesotho. Its fossils were found in the Upper Elliot Formation which is probably Hettangian in age (around 200 million years ago). this was described on the basis of a partial, well preserved articulated skeleton. The holotype had a body length of about 1.5 metres (4.9 ft) and weighed about 22.5 kilograms (50 lb).