Your "principle" here
is dangerous. After all,
you might just as well
say theories "predict"
you won't find dinosaurs in
a mammal's stomach.
Now they've found a case.
Oops. But no one's gonna junk
evolution. Now
they'll just tweak some dates.
An exactly similar
thing would occur if
somebody found bones
that were human-like in old
strata -- experts would
tweak some theory of
proto-human ape-like beings
older than we thought.
Evolution is
an outlook, not a theory --
its holders won't quit.
My later take on this issue is in post #11.