Fig. 2: Microfossil and geochemical trends from the upper Permian to Lower Triassic of the Sydney Basin, Australia.
From: Lethal microbial blooms delayed freshwater ecosystem recovery following the end-Permian extinction
Data from Bootleg-8 and Bunnerong-1 are rescaled to the global chronostratigraphic scheme by anchoring spore-pollen biostratigraphic zone (biostrat.) boundaries to high-precision radiogenic isotope ages within the eastern Australian succession13,14,15 as calibrated in refs. 10,14. Bunnerong-1 amorphous organic matter and algal data from ref. 13. Salinity category values follow ref. 82. B brackish, F freshwater, S saline. Dashed lines at Corg/Ntotal = 30 for ease of comparison between successions. Note: glossopterid-type pollen were produced by both glossopterids and some other seed plants, “last Glossopteris” refers to leaf remains, not “glossopterid-type” pollen. “Dead zone” from ref. 16, EPE = end-Permian extinction event, Ma = millions of years ago, SSE = Smithian-Spathian climatic event, D. = Dulhuntyispora, L. p. = Lunatisporites pellucidus Zone, P. m. = Protohaploxypinus microcorpus Zone, Pl. = Playfordiaspora. Source data are provided as a Source Data file.
