- The PhanSST global database of Phanerozoic sea surface temperature proxy data

$Number of entries from unaltered (opaque) and total (transparent) material, separated by proxy type and binned by geologic stage. The diagenetic determinations in panels a-c are based on the expert-assigned DiagenesisFlag field. This flag applies to all proxies barring TEX86 and U37K′\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{\rm{U}}}_{37}^{K{\prime} }$$\end{document}; here, TEX86 fidelity is based on entries with BIT, MI, and ΔRI values all below 0.5, while U37K′\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{\rm{U}}}_{37}^{K{\prime} }$$\end{document} data whose paleolatitude is greater than 70°N are considered compromised by alkenone production in sea ice. Due to a large increase in the number of entries approaching the Holocene, the y-axis has been scaled in panels a and d, cropping the upper limits of the Quaternary data from these plots.$

Number of entries from unaltered (opaque) and total (transparent) material, separated by proxy type and binned by geologic stage. The diagenetic determinations in panels a-c are based on the expert-assigned DiagenesisFlag field. This flag applies to all proxies barring TEX86 and U37K′\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{\rm{U}}}_{37}^{K{\prime} }$$\end{document}; here, TEX86 fidelity is based on entries with BIT, MI, and ΔRI values all below 0.5, while U37K′\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{\rm{U}}}_{37}^{K{\prime} }$$\end{document} data whose paleolatitude is greater than 70°N are considered compromised by alkenone production in sea ice. Due to a large increase in the number of entries approaching the Holocene, the y-axis has been scaled in panels a and d, cropping the upper limits of the Quaternary data from these plots.

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Reference

The PhanSST global database of Phanerozoic sea surface temperature proxy data - Scientific Figure on ResearchGate. Available from: https://www.researchgate.net/figure/Number-of-entries-from-unaltered-opaque-and-total-transparent-material-separated-by_fig5_366063784 [accessed 15 Jun 2025]

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Number of entries from unaltered (opaque) and total (transparent) material, separated by proxy type and binned by geologic stage. The diagenetic determinations in panels a-c are based on the expert-assigned DiagenesisFlag field. This flag applies to all proxies barring TEX86 and U37K′\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{\rm{U}}}_{37}^{K{\prime} }$$\end{document}; here, TEX86 fidelity is based on entries with BIT, MI, and ΔRI values all below 0.5, while U37K′\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{\rm{U}}}_{37}^{K{\prime} }$$\end{document} data whose paleolatitude is greater than 70°N are considered compromised by alkenone production in sea ice. Due to a large increase in the number of entries approaching the Holocene, the y-axis has been scaled in panels a and d, cropping the upper limits of the Quaternary data from these plots.

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<a href="https://www.researchgate.net/figure/Number-of-entries-from-unaltered-opaque-and-total-transparent-material-separated-by_fig5_366063784"><img src="https://www.researchgate.net/publication/366063784/figure/fig5/AS:11431281251508658@1718251224609/Number-of-entries-from-unaltered-opaque-and-total-transparent-material-separated-by.png" alt="Number of entries from unaltered (opaque) and total (transparent) material, separated by proxy type and binned by geologic stage. The diagenetic determinations in panels a-c are based on the expert-assigned DiagenesisFlag field. This flag applies to all proxies barring TEX86 and U37K′\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{\rm{U}}}_{37}^{K{\prime} }$$\end{document}; here, TEX86 fidelity is based on entries with BIT, MI, and ΔRI values all below 0.5, while U37K′\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{\rm{U}}}_{37}^{K{\prime} }$$\end{document} data whose paleolatitude is greater than 70°N are considered compromised by alkenone production in sea ice. Due to a large increase in the number of entries approaching the Holocene, the y-axis has been scaled in panels a and d, cropping the upper limits of the Quaternary data from these plots."/></a>