Fig. 6: Cyclostratigraphic results and conodont ranges and richness.

a Grey column show lithology rank coded against the rock succession (Grey). b Pink column show a Time-Frequency Weighted Fast Fourier Transform (TFWFFT) evolutive spectra (see ‘Methods’) of the lithology rank time-series highlighting the shift from precession- to 405 kyr eccentricity-dominated carbonate sedimentation between 1800 and 1900 cm. The extracted 405 kyr and 20 kyr filter outputs from the rank time-series are based on Gaussian filters (see ‘Methods’). Pink and white boxes highlight the distinct interpreted 405 kyr cycles and the respective number of counted precession cycles inside these boxes. Note that the transparent boxes correspond to 405 kyr cycles that are much less pronounced in the 405 kyr filter output and hence less reliable while transparency over the precession filter output highlights a likely overly interpreted precession signal due to the poor expression of this component in this interval. c The stratigraphy of the section is shown in the green column. d Orange column show the range-interpolated conodont richness (see ‘Methods’, Supplementary Data 2).