Here is a nice plate with several Trilobite Cephala of the species Mesonacis fremonti. There is also a half Bristolia bristolensis head on this decorative slap from the lower Cambrian of California. | |||
Location: | San Bernardino County, California, USA | ||
Size Plate: | about 118 x 88 mm | ||
Age: | Lower Cambrian, Latham Shale Fm. (about. 520 years) |