Granocardium Clam Fossil

The fossil appears to be Granocardium stantoni? pelecypod fossil. It existed during the Cretaceous Period (about 70 million years ago). This fossil was found in McNairy County, Tennessee (Ripley Formation).

Fossils from this locality have an identification PDF at this LINK.

Learn more about these fossils at the Coon Creek Science Center web site: http://www.memphismuseums.org/coon_creek-overview

Fossil from the Herb Miracle collection.

Caecum Micro Sea Snail Shell

Here is a magnified image of a Caecum sp. sea gastropod shell. It was found in 2014 during a diving trip to Key West Florida, USA. The specimen was about 2 km off shore in about 5 meters under the water. I do not think this is a fossil. Viewed under microscope with a 3 mm field of view.

Thanks to Kenny for the specimen and Herb for letting me use his microscope.

Learn more at these sites:

http://shellmuseum.org/shells/shellspic.cfm?sr=21

http://en.wikipedia.org/wiki/Caecum_(gastropod)

Fenestella Bryozoan Fossils

These fossils appears to be a Fenestella. It was found in the Glen Dean formation.of Grayson County, Kentucky USA. There is an interesting set of spines in the middle of the image. The fossils date to the Mississippian Period. Image was taken with a microscope with an approximate 4 mm field of view (FOV).

Thanks to Kenny for the image.