Theodor Fuchs

Theodor Fuchs (15 September 1842 in Eperies – 5 October 1925 in Steinach am Brenner) was an Austrian geologist and paleontologist.
He studied geology and paleontology at the University of Vienna as a pupil of Eduard Suess (doctorate 1863). Following graduation, he worked as an assistant at the "Hofmineralienkabinett" in Vienna, being named its curator in 1880. From 1889 to 1904 he was director of the geologic-paleontological department at the Natural History Museum in Vienna. In 1897 he became an associate professor of paleontology at the university.
His primary research dealt with studies of stratigraphic conditions of the Late Tertiary of the Vienna Basin and investigations of Tertiary deposits in the Mediterranean.
In 1894 he proposed the Chattian age, a chronostratigraphic stage of the Oligocene epoch. In 1895 he was the first to report on soft sediment deformations known today as "load casts" — at the time, Fuchs used the descriptive term "Fließwülste" (flow crests).
Selected works.
He was a proponent of Esperanto; in 1912 he translated the introductory chapter of Eduard Suess's "Das Antlitz der Erde" ("The face of the Earth") as "La vizaĝo de la tero".