A fossil breaks along an old seam. The find spot is often the price and sometimes a legal question, because not every ground allows removal. In the overview Security for collectors you write down where you got the piece from, and you store it shock-free.
The boundary
What you may find yourself, and what may enter trade, depends on the place and the piece. You clarify that before collecting in the field and before a purchase. This text is the storage, not the excavation permit.
Storage and theft
Shock-free, label not on the sensitive face, heavy slabs at the bottom. Small aesthetic pieces go along in a drawer. They sit with the other small values when the price calls for it. The folder: type in your words, find spot as far as documented, measurements, proof, photo.