The coelacanth was considered by evolutionists to be 60 million years extinct, and it was used as an "index fossil" to determine the age of other fossils in the same rock layer. In 1938, a recently-dead coelacanth was caught off the coast of Madagascar; since then, it has been discovered that native Sri Lankans often caught live coelacanth. This calls into question the age of other fossils for which the coelacanth was an "index fossil" -- are they really that old?