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CrustalTrudger t1_j2e8zra wrote

Reply to comment by agate_ in How is Historic Sea Level Measured? by Rosanbo

Corals only reflect one method for reconstructing past sea level, and while quite accurate recorders, their use is limited to the last few hundred thousand years (e.g., Woodroffe & Webster, 2014). For a complete answer, we must consider the varied array of methods used to reconstruct sea level over the phanerozoic, e.g., sequence stratigraphic techniques, stable isotopic records, etc.

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agate_ t1_j2ebwc0 wrote

You're right in general, but OP's question was in reference to the last 20,000 years, focusing on a Wikipedia figure whose data were primarily collected from corals and other shallow-water biological proxies.

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