This repository contains appendices to the PhD thesis ‘Actinopterygian and chondrichthyan palaeocommunity responses to early Cenozoic global warming', including transcription of the late Palaeocene and early Eocene otoliths housed at London's Natural History Museum (Appendix Table 3.1), the age model for Site U1514 (Appendix Table 4.1), ichthyolith morphotype coding for Site U1514 at low resolution (Appendix Table 4.2) and high resolution (Appendix Table 4.3), ichthyolith morphotype coding for Sites 702 and 1263 (Appendix Table 5.1), as well as images of all ichthyoliths identified at the aforementioned sites. Data is available in spreadsheets with useful visual formatting, as well as in csv format for ease of open data accessibility.