Platyceras dumosum pileum Snail Fossil

Picture of what appears to be a Platyceras dumosum pileum gastropod fossil. It was found in the Devonian limestone of Jefferson County, Kentucky, USA. This fossil is some sort of spiny snail.

Thanks to my cousins Kenny and Chris for the pictures of this fossil!

Ambonychia Pelecypod Fossil with Bryozoan

This fossil appears to be an Ambonychia clam fossil with both valves. It is has quite a bit of matrix covering detailed parts. The clam fossil has a colony of cyclostome bryozoan (see this web site image or called ctenostome type on this web site).

The fossil still needs to be cleaned to see if more shell and bryozoan detail can be revealed. It is rare for me to find clams with both valves intact so this was a happy discovery.

The fossil was found in the Kope Formation of Carroll County, Kentucky, USA. These creatures existed in the Ordovician Period.

Michigan's State Stone - Petoskey

Here are some pictures of Michigan's state stone Hexagonaria polished coral (aka Petoskey stone). It was named their state stone in 1965 by Govenor George Romney while their state fossil is the mastondon (Mammut americanum).

The Hexagonaria coral is from the Devonian Period and quite attractive when polished. According to Wikipedia.org they are found in Gravel Point Formation of the Traverse Group of Michigan, USA. The stones are named after an Ottawa Chief Pet-O-Sega (Petosegay) whose land the stones were found on.

Thanks to Vic for the fossil specimens.

Learn more at the Wikipedia.org entry on Petoskey stones.