It seems that I read somewhere of a large ceratopsian and a large hadrosaur (Edmontosaurus or Parasaurolophus) with filamentous integument on he tail or running down the back. The large ceratopsian may have been a speculative based on the Psittacosaur sp. Check also the hypsilophodontids of southern-most Australia.
The three you have listed is about the most comprehensive list of "feathered" ornithischians, I know of.
On February 18, 2021 at 6:27 AM Poekilopleuron <dinosaurtom2015@seznam.cz> wrote:
Good day,
I would like to ask, if there is any comprehensive list of all known "feathered" ornithischian dinosaur specimens. That includes those with a "primitive" filamentous integument as in Psittacosaurus sp. from Yixian. Is it still just Kulindadromaeus, Tianyulong and Psittacosaurus so far? Thank you, in advance! Tom