In the text on Cryptovolans, Czerkas accused Dr. Mark Norell of misinterpreting the fossil BPM 1 3-13 as having long leg feathers due to the ``blinding influences of preconceived ideas.'' In fact, though, Norell's interpretation was correct, and Czerkas added leg feathers to his own reconstruction of the fossil in the art that promotes the traveling exhibit.
Norell
Czerkas