Sea Level Change — Dawn of Dinosaurs to Present (~250 Ma)

Primary: Haq, Hardenbol & Vail (1987) digitised by Miller et al. (2005) • Overlay (0–9 Ma): Miller et al. (2011) benthic δ¹⁸O reconstruction • Sea level relative to present (metres)

Data notes: The Haq et al. (1987) curve is a sequence-stratigraphic reconstruction; absolute amplitudes (especially for the Mesozoic) carry uncertainties of ±25–75 m or more. The dataset here covers ~0.15–250 Ma (GTS2012 timescale); the Triassic/Jurassic boundary (~201 Ma) and Cretaceous thermal maximum highstand (~+250 m) are prominent features. Miller et al. (2011) uses benthic foraminiferal δ¹⁸O as a proxy for ice volume/sea level over the last 9 Ma at finer resolution. The Haq curve does not reach 252 Ma (Triassic start); data begins at ~250 Ma.

Data: NOAA NCEI Paleoclimatology • Miller et al. 2005, Science 310:1293–1298 • Haq, Hardenbol & Vail 1987, Science 235:1156–1167 • Miller et al. 2011, Oceanography 24:40–53 • Generated by generate_sealevel_deep.py