1. Bassett MG (1982) ‘Formed stones’ folklore and fossils. National Museum of Wales, Geological Series, 1
2. Bevins RE, Ixer RA, Pearce NJG (2014) Carn Goedog is the likely major source of Stonehenge doleritic bluestones: evidence based on compatible element geochemistry and principal component analysis. J Archaeol Sci 42:179–193
3. Briant, M (2017) The Giant’s causeway: culturally natural or naturally cultural? In: Larwood J, France S, Mahon C (Eds) (2017). Culturally natural or naturally cultural? Exploring the relationship between nature and culture through world heritage, 24–25. IUCN National Committee UK
4. Brilha J, Gray M, Pereira DI, Pereira P (2018) Geodiversity: an integrative review as a contribution to the sustainable management of the whole of nature. Environ Sci Pol 86:19–28
5. Crofts R, Gordon JE (2015) Geoconservation in protected areas. In: Worboys GL, Lockwood M, Kothari A, Feary S, Pulsford I (eds) Protected Area Governance and Management. ANU Press, Canberra, pp 531–568