Ogygopsis klotzi
Trilobite
Middle Cambrian
Burgess Shale, Stephens Formation
Field, British Columbia, Canada

Big 83mm trilobite on 150mm slab.

Ogygopsis is well-known trilobite genus from the Middle Cambrian-age Burgess Shale of British Columbia, Canada.  It is a rare find at other Middle Cambrian sites around the world (Utah, Idaho, Greenland, Kazakhstan, and even Antarctica) and has also been reported from the Early Cambrian of California and Nevada.