Sources: Geology, Ohio State University
quote: "...since the vast majority of sedimentary rocks were laid down by what science calls "A mass extinction event..."
quote: It could easily be the wrong dating has been applied to the layer these fossils were discovered.
quote: The possibility of a "whoops, wrong dating method!" being applied is virtually zero,
quote: The majority of rocks are thought to have been deposited slowly over time with only a minor component being from catastrophic events.