Theodor Marsson

Theodor Friedrich Marsson (8 November 1816 – 5 February 1892) was a German pharmacist and botanist.

The son of a pharmacist, he studied chemistry under Justus von Liebig (1803–1873) at the University of Giessen.

Around 1870 he sold the pharmacy in Wolgast and retired to private life in Greifswald, later relocating to Berlin.

On the basis of fossils found in chalk deposits at Rügen he composed works on foraminifera (1878), ostracods and cirripedes (1880).

Marsson's last scientific activity dealt with living organisms, involving microscopic research of diatoms.