Ilymatogyra arietina Pelecypod

An Ilymatogyra arietina pelecypod fossil found in Grayson Marl Formation of Tarrant County, Texas. Animals lived in the upper Cretaceous Period. Check out Dave's write up on this fossil on the Views of the Mahantango blog: CLICK HERE
Thanks to Mark for these fossils.

A smaller Ilymatogyra arietina pelecypod fossil is shown in the next three images.

Spyroceras Cephalopod

Two fossils are shown that might a Spyroceras cephalopod of the Mississippian Period. These fossils came from the Chesterian Zone of the Bangor Limestone Formation of Franklin County, Alabama.

Neochonetes granulifer Brachiopod

Neochonetes granulifer brachiopod fossil found in the Kewitz Shale of the Stanton Formation of the Lansing Group of Cass County, Nebraska. Fossil dates to the Upper Pennsylvanian Period. I posted a picture of a group of these fossils found at the natural history museum in Paris, France back in October 23, 2009: CLICK HERE

Learn more about this fossil at the University of Nebraska at Lincoln School of Natural Resources web site: CLICK HERE

Thanks to Mark for the fossil.