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From the site,
Abstract: The recently reported Jeholornis represents the only known bird
with a complete long skeletal tail except for Archaeopteryx.
Does _Rahonavis_ not count because its tail isn't completely known, or
because it isn't a "bird"?
More interestingly, the tail feathers are shaped more like those of
>dromaeosaurs than those of Archaeopteryx.
Are there any other feathers preserved? Two or four wings? :)
We conclude that the common ancestor of birds must have a more >primitive
tail than that in Archaeopteryx, confirming the side branch >position of
Archaeopteryx in the early avian evolution.
Should that be said about _Archaeopteryx_ when _Jeholornis_ is clearly a
side-branch? Which tail shape allows for better flight ability?
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