anlomedad on Nostr: Thank you, Evan! The blue line in the chart is from data by Rohling et al 2021 and ...

Thank you, Evan! The blue line in the chart is from data by Rohling et al 2021 and shows the same skipped beat.
Data (likely) from: https://www.ncei.noaa.gov/access/paleo-search/study/33752
Looking at the text, they might have just taken a sea level by Westerhold and played with its age model.
The one in my plot is "Westerhold unconstrained".
The obliquity beat is also skipped in the other text file, the constrained one.

In any case, Miller is not in the chart. It just used to be my go-to study for sea level, that's why I refer to it in my toots.

So do Miller, Westerhold and Rohling use a different d18O_to_sealevel transfer functions for different time periods?

I wasn't aware that team Westerhold also has a sea level reconstruction. My Ceara Rise surface air temperature is based on their global temperature proxy "quilt" where they exclusively use Ceara Rise for the most recent 5 million years.

Their supplement has formulae to convert the deep-sea stuff into surface air temperature. See page 58 https://www.science.org/doi/10.1126/science.aba6853
These formulae are split at 1.8Ma for surface air °C .
Which is also far, far away from the skipped beat in 2.73 Ma.
It's the only period split I am aware of.

And as you know: I am no expert in anything. So don't expect that I actually read or understood the papers I am quoting here and in the thread 😁 I'm just plotting along…