Jurassic Stratigraphy - Part 1, Volume Nine of the serial Stratigraphy and Timescales, showcases new advances in the field with a collection of engaging chapters. This volume spans a broad range of stratigraphic disciplines and offers insights into recent developments within the geoscientific research community. As a fully commissioned review, it aims to highlight progress in various areas of stratigraphy, including geochronology, magnetostratigraphy, lithostratigraphy, event-stratigraphy, isotope stratigraphy, astrochronology, climatostratigraphy, seismic stratigraphy, biostratigraphy, ice core chronology, cyclostratigraphy, palaeoceanography, sequence stratigraphy, and more.