Modiolopsis concentrica Pelecypod Fossil with Cornulites

Above is a picture of a Modiolopsis concentrica (Hall & Whitfield, 1875) pelecypod fossil. Also the fossil has worm tubes called Cornulites (Schlotheim, 1820). These animals existed in the Ordovician Period. It was found in the Clays Ferry Formation of Robertson County, Kentucky USA. Thanks to Kenny for the image.

Achatella carleyi Trilobite Fossil With Ceratopsis chambersi Ostracod

Above is a picture of an Achatella carleyi (Meek,1872) trilobite fossil. Also an ostracod is at the top of the image that appears to be a Ceratopsis chambersi (Miller, 1874).  These animals existed in the Ordovician Period. It was found in the Clays Ferry Formation of Robertson County, Kentucky USA. Thanks to Kenny for the image.

Acidaspis Trilobite Fossil Fragments

 

Trilobite fossils found near Maysville, Mason County, Kentucky USA dates to the Ordovician Period. Images were taken under microscope and field of view is 1.5 cm. They appear to be fragments of an Acidaspis (Murchison, 1839) trilobite.

Thanks to Kenny for the image.