Note that evolution has nothing to do with how the index fossils are used to date strata!Any kind of object clearly restricted to a specific point in the geologic column would do just fine.
By then, the relative ages (order) of the geologic column had already been worked out in some detail.Being ancient, the C-14 content has long since decayed away and that makes it useful in "zeroing" laboratory instruments. Hovind would take the trouble to do a little reading from something other than creationist publications he would not make such an outrageous statement.It's just one of the tricks that have been used to make the work a little more precise. I believe he has confused the use of index fossils with evolution.Just what is it that a Cambrian stratum has which a Cretaceous stratum lacks?What does the Jurassic strata have that the Tertiary strata do not? Neutrinos penetrate the earth so easily that they would affect all strata more or less equally, to the extent that they affect anything at all.This poses a fatal problem whether one believes in the accuracy of radiometric dating or not!