Spirifer Brachiopod Fossil

Brachiopod fossil this might be a Spirifer sp. found in Milwaukee County, Wisconsin, USA. This brachiopod looks a lot like those found in southern Indiana in the Jeffersonville Limestone called Orthospirifer sp. The Indiana fossil tends to be more gray though.
The Spirifer sp. exist in the Milwaukee Formation with is dated to the Middle Devonian Period.
Thanks to Nathan for the fossil.

Spanish Nummulite Fossils

These fossils are Nummulites sp. which are a type of foraminifera. They were found in Spain and existed in the Eocene epoch of the Paleogene Period. Some of these fossils are the size of an American silver dollar.

Pentamerus Brachiopod Mold

There are some molds of a Pentamerus sp. brachiopod fossil found in Fond du Lac County, Wisconsin, USA. For some reason we I see these types of fossils, I think of a pig's hoof. These fossils date to the Silurian Period. A very nice write up on these types of fossils can be found on the Wooster Geologists Blog. Thanks to Nathan for the fossil.