Here is a relative large and nicly inflatted preserved "Ohio Trilobite" of the species Flexicalymene meeki.  | |||
Location:  | Mt. Orab, Ohio , USA | ||
| Size trilobite: | about 29 mm long & 18 mm wide | ||
| Age: | Ordovizian, Richmond Formation, Arnheim Member, (about. 470 mill. y.o.) | ||