Penny, Claire; Bentley, Michael J; Hodgson, Dominic A; Gröcke, Darren R; Graham, Alice; McClymont, Erin L (2026): Multi-proxy dataset from a snow petrel stomach-oil deposit 1401MUM1 of the Theron Mountains, Weddell Sea [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995091 (DOI registration in progress)