Sthenarocalymene celebra (Raymond).
Triangular piece of cream coloured Dolomitic Limestone. On one corner is a beautifully preserved 3D complete outstretched Calymene. An absolute beauty. Unusual locality for this species.
Silurian, Joliet Dolomite, Springfield Formation.
Weyne County, Indiana, USA.
Trilobite : 2.8 cm long.
