Second off, I note a very interesting similarity to *Longisquama* in
that the dorsal structures of *L.* parallel curvature in *C.,* as well as
placement (on top of the skeletal characters that Senter noted, which I
forgot to ask him about at SVP this year), so it is easy to see the one
develop from the other, so either *L.* "lost" the dermal bone (failure to
ossify during ontogeny) or *C.* ossified them from unossified
cartilagenous cores that were likely present in the "rachis" of *L.* that
Jones et al. use to "prove" these were feathers.