Coryphodon oweni Fossil

This fossil is part of a skull of an extinct pantodont known as Coryphodon oweni. Fossil was named by Herbert in 1856. It was found in the Meudon of Sparnacian of France. This creature existed in the Paleocene and Lower Eocene Epochs of the Paleogene Period.. It was on display in August of 2016 at the  Muséum National D'Historie Paris.

Pterocrinus acutus Crinoid with Snail Fossil

This crinoid calyx appears to be a Pterocrinus acutus (Wetherby, 1879). It has a snail fossil fossilized with it. The animals existed in the Mississippian Period and were found in the Glen Dean member of Grayson County Kentucky USA.

Thanks to Kenny for images.

See more images of crinoids like this at Don R. Chesnut's web page on fossils of the Sloans Valley Member (Paragon Formation).

http://www.uky.edu/OtherOrgs/KPS/stratigraphicfauna/sloansvalleymacrofauna/pages/sloansvalleyechinodermata.html

Alveolites Branching Coral Fossil

This image is of an Alveolites winchellana (Miller) coral fossil. It was found in the Jeffersonville Limestone of Clark County Indiana USA. The fossil dates to the Devonian Period.
This fossil was on display at the Falls of the Ohio State Park Interpretive Center as of January 2016. This coral is one of over 200 species that were known to live in this area over 300 million years ago.