Might as well jump into this thread with this small unresolved issue about Archie in Wikipedia:
http://en.wikipedia.org/wiki/Archaeopteryx
Paragraph of contention: "Given that it is now well established that several lineages of theropods evolved feathers and flight independently,
As an aside, since when is it well established that feathers were acquired independently in various lineages? Why not assume that feathers (or protofeathers) are an ancestral trait for Maniraptoriformes?
-- Andreas Johansson
Why can't you be a non-conformist just like everybody else?