The first type consists of hair-like filaments covering the trunk, neck and head. These are up to three centimetres long and resemble the "dino-fuzz" already known from theropods like "Sinosauropteryx". The second type shows groups of 1.5 centimetres-long filaments, each group coming from a base plate. These are on the upper arm and thigh. The base plates are ordered in a hexagonal pattern but do not touch each other. The third type is unique. It was found on the upper lower legs and consists of bundles of six or seven ribbon-like structures, up to two centimetres long. Each ribbon is made from about ten parallel filaments up to 0.1 millimetres wide.