John "Jack" Gordon Douglas (1929–2007), Australian geologist and palaeobotanist.

IPNI standard form: J.G.Douglas

Taxon names authored

(List may be incomplete)

• 36 taxon names authored by John G. Douglas

Publications

(List may be incomplete)

• Douglas, J.G. 1964. New bennettitalean leaves from the Mesozoic of eastern Australia. Mining and Geological Journal of Victoria 6(5): 20–26. Reference page. 
• Douglas, J.G. 1965. The Mesozoic leaf Ginkgoites australis (McCoy) Florin, and a new species, Ginkgoites waarrensis n. sp. Proceedings of the Royal Society of Victoria 77(1): 197–206. Reference page. 
• Douglas, J.G. 1969. The Mesozoic floras of Victoria: Parts 1 and 2. Geological Survey of Victoria Memoir 28: 1–310. Reference page. 
• Douglas, J.G. 1973. The Mesozoic floras of Victoria: Part 3. Geological Survey of Victoria Memoir 29: 1–180. Reference page. 
• Douglas, J.G. 1983. A new Late Silurian thallophyte from central Victoria. Proceedings of the Royal Society of Victoria 95(3–4): 275–277. Reference page.