Evolutionary and biogeographical significance of a subpolar greenhouse biota in late middle Eocene amber from Anglesea, Australia

This thesis explores the paleontological significance of late middle Eocene amber from Anglesea, Victoria (Australia)— a rare finding from the southern hemisphere. Using Synchrotron micro-CT imaging, I optimized methods for visualizing inclusions and described the first Southern Hemisphere records of several taxa, including a non-biting midge, a wasp, springtails, and new bryophytes. The fossil assemblage reveals exceptional preservation and striking similarity to modern eastern Australian rainforests, indicating deep ecological continuity. By reconstructing palaeoecosystems and examining taphonomic patterns, this study provides new insights into ancient Gondwanan environments and highlights the long-term biodiversity value of Australian forests today.