Data for: Conserved ontogenetic regulation of strontium partitioning in biogenic apatite: A framework for reconstructing deep-time seawater temperature and chemistry

This supplementary dataset provides comprehensive geochemical data for Sr/Ca ratios in biogenic apatite, supporting the study's ontogenetic and paleoenvironmental framework. The dataset comprises a total of 10 tables (2 main tables and 7 supplementary tables), organized as follows: Table 1, Relationships between (Sr/Ca)PO₄ and conodont biometrics (length and weight). Table 2, Sensitivity of reconstructed (Sr/Ca)sw to different δ18Osw assumptions. Table S2, Intra-generic (Sr/Ca)PO₄ variations relative to morphometrics (length and weight) in conodonts and ichthyoliths. Table S3, Comparison of in situ and bulk analytical methods for conodont (Sr/Ca)PO₄. Table S4, (Sr/Ca)PO₄ of co-occurring conodonts and ichthyoliths from the Triassic samples. Table S5, Leave-one-out cross-validation (LOOCV) evaluation of non-linear models between (Sr/Ca)PO₄ and conodont morphometrics (length and weight). Table S6, Comparison of (Sr/Ca)PO₄ from shallow- and deep- dwelling conodonts. Tables S7 and S8 present (Sr/Ca)PO₄ and δ18OPO₄ from the Zuodeng and Long Chang sections, respectively.