Reg C. Sprigg

Reginald Claude Sprigg (1919–1994) was an Australian geologist, conservationist, and ecotourism pioneer who discovered the Ediacara biota, the world's oldest known multicellular fossils, in 1946 in South Australia's Flinders Ranges. He founded Geosurveys of Australia in 1954 and played a key role in establishing SANTOS, leading to major gas discoveries in the Cooper Basin in 1963, while later developing the Arkaroola Wilderness Sanctuary.[1][2][4]