− | [[File:Cambrian Trilobite Olenoides Mt. Stephen.jpg|thumb|300px|Ogyopsis klotzi from the Mt. Stephen Trilobite Beds (Middle Cambrian) near Field, British Columbia, Canada.; Photograph taken by Mark A. Wilson (Department of Geology, The College of Wooster), August 2009.]] | + | [[File:Cambrian_Trilobite_Olenoides_Mt._Stephen.jpg|thumb|300px|Ogyopsis klotzi from the Mt. Stephen Trilobite Beds (Middle Cambrian) near Field, British Columbia, Canada.; Photograph taken by Mark A. Wilson (Department of Geology, The College of Wooster), August 2009.]] |