Here is a detailed trilobite plate with several specimens of the species Orygmaspis contracta from the Upper Cambrian of the McKay Group in Canada. | |||
Location: | Bull River Valley, Cranbrook, British Columbia, Canada | ||
Size Matrix: | about 126 x 98 mm | ||
Age: | Upper Cambrian, McKay group , (about. 518 Mill. y.o.) |