Crinoid Graveyard Piece

Here is a rock slab I saw at the last KYANA fossil study session. It was probably at least 30 cm long and full of broken crinoid stems.

I saw in the KYANA display case something like this and it was called a graveyard rock.

It looks like crinoids seen at Lake Cumberland so I would say this is Mississippian period, just a guess. :)

Spiny Snail: Platyceras dumosum?

Here is another spiny snail found during a geology society field trip in July to a Sellersburg quarry (I think). It is embedded very well in a rock but it probably is a Platyceras dumosum from the Devonian period.

Ordovician Cephalopod

Here is a 14 segment Ordovician cephalopod found on a Taylorsville Lake Road cut in July during a geological society field trip.