San Bernardino County, California
Olenellus is an extinct genus of redlichiid trilobites. Olenellus fremonti is a super rare trilobite coming from famous lower cambrian Shale of Marble Mountain. In 1 week digging you can find just one Trilobite complete and some perfect heads like the one listed. This is a killer mass mortality. It is super rare!
Super Cambrian Mass Mortality Olenellus fremonti (Walcott 1910)
size: slab Positive and negative 18 cm x 18 cm
restorations: 1 crack fill in the counterpart
preparator: DI Silvestro Gianpaolo