Dissertation: Heda Agic studies the early evolution of complex life

2015-12-17

Photographer: Malgorzata Moczydlowska-Vidal

By extracting organically preserved microfossils out of rocks, and using advanced microscopy and spectroscopy techniques, Heda Agić has investigated the affinity and timing of divergences between different lineages of photosynthetic microbiota.

Among other things, Heda has identified some striking similarities between the cell wall of the microfossils Dictyosphaera and Shuiyousphaeridium, both from the Proterozoic Eon (2500 to 542 million years ago), and the reproductive stages/cysts of modern algae.

The results indicate significant complexity inside early eukaryotic cells, including the activity of the Golgi apparatus organelle, already at the time of the Mesoproterozoic Era.

Link to the entire thesis: ”Palaeobiology and diversification of Proterozoic-Cambrian photosynthetic eukaryotes" 

Katarina Sundberg

News archive 2015