Ostracods are small crustacea with a carapace that consists of two hinged valves. They appear in the Ordovician and continue to the present.
These fossils were collected at the Penn Dixie Site from the Lower Windom Shale and photographed by Karl A. Wilson, of Binghamton, NY. The ostracodes were imaged with an Intel Play QX3 computer microscope at a magnification of 60X. The image field of each is approximately 3 mm wide.
Visit Karl’s website for additional information and photos on New York Paleontology. These photos have been added to the Penn Dixie Fossil section with Karl Wilson’s permission.