sil – as ancient fossils were known long before the fish was found. The modern coelacanth is not identical to the ancient fish, but is sufficiently similar to represent a continuation of the same lineage.
The continuing saga of the dating of the appearance of tetrapods is an excellent example of the way science and scientists work. There is no “party line” that must be maintained. The data determines the consensus with much arguing and discussion along the way. New hypotheses are proposed to account for the data and new investigations undertaken to test the hypotheses. This is not evidence of a theory in trouble, but a picture of scientists and scholars at work.
What do you think?
Does this kind of investigation and revision challenge your acceptance of evolution?
Does it strengthen your confidence in the process?
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