I think this report about Powys fossils of Wales is self explanatory from a Creationist view. The following quotes are from a BBC report.
"Scientists believe they have made a remarkable discovery of fossils in a disused Powys quarry. They think they are of a kind never before discovered. The well-preserved organisms from the Ordovician period, lived in what is now the town of Llandrindod Wells, which was
partially under water. Scientists believe they shed new light on how ocean communities have evolved. The fossils include a variety of creatures from sponges and worms to nautiloids,
which are similar to a squid with a shell. --- "On the very first slab we found a spectacular hydroid that we hadn't even
suspected was there because it is entirely enclosed within the rock." ---- "The new fauna gives us a picture of a fossil community that not only is
entirely new, but is also surprising. It resembles to some extent some of the
modern communities found in the very deep sea." Uhmm...Hint, Hint "This type of ecological community type was simply unknown from rocks this old,
and for it to suddenly appear makes palaeontologists wonder what else they've
been missing."
"It shows us that Ordovician ecosystems were even more diverse and
complicated than we imagined." BBC
............the same day were all the fountains of the great deep broken up, and the windows
of heaven were opened. Genesis 7:11