Georg Geyer (20 February 1857 in Schloss Auhof, near Blindenmarkt – 25 November 1936 in Vienna) was an Austrian geologist and paleontologist.
He studied at Graz University of Technology, at the Bergakademie in Leoben and at the University of Vienna. From 1882 he was associated with the Geological Survey of Austria, being named chief geologist in 1900 and serving as its director from 1920 to 1923. In 1921 he became a member of the Vienna Academy of Sciences.
Source: Wikipedia, "Georg Geyer", available under the CC-BY-SA License.