Fossil Hunting Kit

In sedimentary rock of the right age — shale, limestone, sandstone, in formations known to be fossil-bearing (a regional geology guide lists them). The rock must be sedimentary (the fossil is the preserved remains in the deposited sediment) and of an age with life (Paleozoic and later). A local fossil site (public land, a fee quarry, or with permission) is the venue; the guide finds them.

Sedimentary rock was deposited in layers (the bedding planes); fossils often lie along these planes (the creature was buried in the sediment). Splitting the rock along a bedding plane (a natural weakness) reveals the fossil as an impression on the split surface — cleave the rock where it wants to cleave, and the fossil is there. Random breaking misses the fossils.

Non-negotiable. Striking rock sends sharp splinters at high speed — a splinter in the eye is a blinding injury. Safety glasses (ANSI Z87) for every strike. A geologist's hammer with a chisel end (to cleave) and a pick end (to pry) is the tool; strike deliberately, never glancing. The eye protection and the controlled strike are the safety; a fossil is not worth an eye.

It depends on the land. Private land — only with the owner's permission. State and county parks — usually prohibited or by permit. National parks — collecting fossils is illegal (take only photos). BLM land — casual collecting of common invertebrate fossils is generally allowed (with limits); vertebrate fossils need a permit. Know the rules of the land before you collect; a fossil collected illegally is a fossil seized and a fine.