Indiana Ordovician Bryozoan Fossils

 

Bryozoan fossils found near Brookville Lake, Franklin County, Indiana USA and Waynesville Formation dates to the Ordovician Period. Images have a field of view is 2-3 cm. The one bryozoan shows evidence of snails boring into the colony.

Thanks to Kenny for the images.

Acidaspis Trilobite Fossil Fragments

 

Trilobite fossils found near Brookville Lake, Franklin County, Indiana USA and Waynesville Formation dates to the Ordovician Period. Images were taken under microscope and field of view is 2 mm. They appear to be fragments of an Acidaspis (Murchison, 1839) trilobite.

Thanks to Kenny for the images.

Ostracodes Fossils From Indiana

Ostracode fossils found near Brookville Lake, Franklin County, Indiana USA and Waynesville Formation dates to the Ordovician Period. Images were taken under microscope and field of view is 1.5 mm. The top ostracod might be an Quasibollia.

Thanks to Kenny for the images.

 Learn more at this link to 1982 PDF paper on Kentucky Ostracodes .