
Cerling, T. E. et al. Global vegetation change through the Miocene/Pliocene boundary. Nature 389, 153–158 (1997).
Tipple, B. & Pagani, M. The early origins of terrestrial C4 photosynthesis. Annu. Rev. Earth Planet. Sci. 35, 435–461 (2007).
Polissar, P. J., Rose, C., Uno, K. T., Phelps, S. R. & deMenocal, P. Synchronous rise of African C4 ecosystems 10 million years ago in the absence of aridification. Nat. Geosci. 12, 657–660 (2019).
Bush, R. T. & McInerney, F. A. Leaf wax n-alkane distributions in and across modern plants: Implications for paleoecology and chemotaxonomy. Geochim. Cosmochim. Acta 117, 161–179 (2013).
Diefendorf, A. F. & Freimuth, E. J. Extracting the most from terrestrial plant-derived n-alkyl lipids and their carbon isotopes from the sedimentary record: a review. Org. Geochem. 103, 1–21 (2017).
Garcin, Y. et al. Reconstructing C3 and C4 vegetation cover using n-alkane carbon isotope ratios in recent lake sediments from Cameroon, Western Central Africa. Geochim. Cosmochim. Acta 142, 482–500 (2014).
Sinninghe Damste, J. S., Kuypers, M. M. M., Schouten, S., Schulte, S. & Rullkötter, J. The lycopane/C31n-alkane ratio as a proxy to assess palaeoxicity during sediment deposition. Earth Planet. Sci. Lett. 209, 215–226 (2003).
Wakeham, S. G., Freeman, K. H., Pease, T. K. & Hayes, J. M. A photoautotrophic source for lycopane in marine water columns. Geochim. Cosmochim. Acta 57, 159–165 (1993).
Dupont, L. M., Rommerskirchen, F., Mollenhauer, G. & Schefuß, E. Miocene to Pliocene changes in South African hydrology and vegetation in relation to the expansion of C4 plants. Earth Planet. Sci. Lett. 375, 408–417 (2013).
Dansgaard, W. Stable isotopes in precipitation. Tellus 16, 436–468 (1964).
Sachse, D. et al. Molecular paleohydrology: interpreting the hydrogen-isotopic composition of lipid biomarkers from photosynthesizing organisms. Annu. Rev. Earth Planet. Sci. 40, 221–249 (2012).
Morley, R. J. & Richards, K. Gramineae cuticle—a key indicator of late cenozoic climatic-change in the Niger Delta. Rev. Palaeobot. Palynol. 77, 119–127 (1993).
Edwards, E. J., Osborne, C. P., Stromberg, C. A. E. & Smith, S. A. The origins of C4 grasslands: integrating evolutionary and ecosystem science. Science 328, 587–591 (2010).
Herbert, T. D. et al. Late Miocene global cooling and the rise of modern ecosystems. Nat. Geosci. 9, 843–847 (2016).
Beerling, D. J. & Royer, D. L. Convergent cenozoic CO2 history. Nat. Geosci. 4, 418–420 (2011).
Source: Ecology - nature.com