Standard procedures of biostratigraphy are absolutely and completely independent of evolution. They would work just as well if a wizard replaced all the fossils with, say, coins bearing unique but arbitrary numeric codes for each species.
Besides, they were invented not by "the evolutionists" but by creationists. The proof? All of the major geologic systems (save only the Silurian) were in place before Darwin even started college. How could these methods be based, via circular reasoning, on evolution when they were invented by creationists and applied by creationist, all before any geologist at all was an evolutionist of any description?
My question meant: Would you like to evidence the bald claim that biostratigraphic standards prove common descent independently, not circularly? Thanks.
Darwinism transformed "geologic systems" or zones into "geologic eras". Since you admit geologic zones are compatible with creation and design, they cannot prove evolution independently. The circularity is that common descent is assumed to prove itself, not a creationist import. Happy to explain further.
Saying everyone before Darwin was a creationist is like saying everyone before Martin Luther was a Catholic.