They have to be kidding?
ALL the Fossils were made by the Flood but are found in vastly different layers at vastly different depths in the soil and rocks.
Anyone with even half an operative brain knows that when flooding occurs the deposits of soil and debris ALL end up at almost EXACTLY the same level in the ground AFTER the Flooding has gone.
According to the ORIGINAL version of Genesis in both the Torah band the bible, " It rained for 40 days and 40 nights unabated until at last the clouds disappeared, then the Ark drifted for a further 6 or more MOONS BEFORE it become stranded upon a mountain top."
Now, a Lunar cycle is approx. every 28 days, hence it would been a minimum of 168 days that the Ark drifted aimlessly PLUS the 1 Lunar cycle and 12 days that the clouds covered the earth completely.
Now, for a skeleton to be turned into a FOSSIL, i.e. turned into STONE and Minerals, it can and does take anywhere between 49,000 years and a few MILLION years at the VERY least dependent upon the soil types, the minerals present, the preservation of the skeletal remains, etc, etc.
These things CANNOT happen in the short space of the 6,000+ years that Creationists and the Holey Babble so claim the planet to have existed for.