>OK, now back to my question. Suppose that none of the
>claims C1, C2, R_C1, R_C2 can, at present, be supported.
>What to conclude?
Perhaps that the question is still open. Likely, appeal will be made to
the fossil record as the arbiter. However, the fossil record has to be
interpreted also, and the same criticisms apply there.
Art
http://geology.swau.edu