Jurassic Ammonites

Unidentified ammonite fossils from Drügendorf, Germany.  Time period for these fossils are Jurassic (Kimmeridgian).

Thanks to Dave at the blog View of the Mahantango for these specimens.

Byssonichia radiata

Silurian Period clam fossil found in Waynesville, Ohio stored in Muséum National D'Historie Naturelle Jardin Des Plantes Paléontologie et Anatomie Comparée, Paris, France.  The clam is called Byssonichia radiata.
UPDATE: Solius Symbiosus of Swimming the Ordovician Seas blog left a comment that this pelecypod should be called Byssonychia radiata.  After looking it up I find that is has a new name Ambonychia radiata Hall, 1847 see this for more. Also it appears to be an Ordovician Period fossil and not a Silurian one. Thanks for the clarification.

Past references I have made to the Ambonychia:

http://louisvillefossils.blogspot.com/2009/03/ordovician-pelecypod-ambonychia.html

http://louisvillefossils.blogspot.com/2010/01/kope-formation-fossils.html

http://louisvillefossils.blogspot.com/2008/07/ordovician-pelecypod.html

http://louisvillefossils.blogspot.com/2010/05/fossils-of-bullitt-county.html

Cladoselache Shark Fossil

Okay, I am going out on a limb (or should I say fin) with this fossil identification.  This fossil imprint appears (to me) to be a fragment of a pectoral fin of an Upper Devonian Period Cladoselache shark.  Now I have shown this fossil to a number of people and the Cincinnati & Cleveland museums mostly to met with silence or skepticism.  As an aid to readers, I have created a graphic using Adobe Illustrator with diagram representing the shark with where the fossil might fit on its body.

It looks to me to somewhat match the Cleveland Shale shark fossils.  This fossil was found in the New Albany Shale of Bullitt County which is synonymous.

Cladoselache Shark Fossil with New Fossil Overlay

Original Image from The Jesse Earl Hyde Collection

Case Western Reserve University (CWRU)

Department of Geological Sciences

Posted with Permission (Usage Agreement)

UPDATE (March 2020): Updated web links for The Jesse Earl Hyde Lantern Slide Collection and Case Western Reserve University.