| Here is a very rare Trilobite from the middle Cambrian Wolsey formation of Montana. The Fossil was found on a very small piece of stone so that is got remounted on a other piece of original matrix. | |||
Location: | Gallatin Country, Montana , USA | ||
| Size trilobite: | about 8 mm long | ||
| Age: | Middle Cambrian, Meagher Limestone, Wolsey Fm. (about. 518 Mill. y.o.) | ||