Primary and institutional references used to shape the site’s legal, geologic-time, preservation, and marketplace framework.
Government and museum sources
- U.S. Bureau of Land Management: Can I collect fossils?
- BLM: Can I Keep This?
- National Park Service: Visit Park Fossils and collecting prohibition
- National Park Service: Fossil protection laws and policies
- U.S. Geological Survey: Geologic Time Scale
- USGS: Introduction to geologic time
- Smithsonian: Fossilization—How Fossils Form
- Smithsonian: Fossil Preparation from Field to Museum
- Smithsonian FossiLab
- Smithsonian National Fossil Collection overview
Professional ethics
- Society of Vertebrate Paleontology: Code of Conduct
- Society of Vertebrate Paleontology: U.S. paleontology law and agencies
Marketplace structure
Editorial policy: Marketplace listings are used only to build comparison sets. A listing is not treated as authoritative scientific identification, proof of authenticity, or proof of legal provenance.