Here we have a cute double of this quite rare trilobite species from the upper Cambrian of noth Walles. On a original pice of welsh slate. | |||
Location: | Dolgella, north Wales | ||
Size of trilobites: | about 12 & 4 mm | ||
Age: | Upper Cambrian, Dolgella series, , P. spinulosa Zone (about 400 mill. y.o.) |