Four new specimens of Anchiornis huxleyi were recently recovered from the late Jurassic fossil beds of the Tiaojishan Formation in northeastern China. These new specimens are almost completely preserved with cranial and postcranial skeletons. Morphological features of Anchiornis huxleyi have implications for paravian evolution and provide insights into the relationships of major paravian lineages. This group of feathered dinosaurs are very closely related to birds. A technical papers but some beautiful images with great detail of these feathered dinosaurs.
http://digitallibrary.amnh.org/handle/2246/6707
Plates from the paper