Friedrich August von Quenstedt

Friedrich August von Quenstedt (10 July 1809 – 21 December 1889) was a German geologist and palaeontologist.

Von Quenstedt was born at Eisleben in Saxony, and educated at the Humboldt University of Berlin.

His earlier work related chiefly to crystallography and mineralogy, on which subjects he published text-books that were widely used.

In 1845, he devised a trinomial system of nomenclature for Jurassic ammonites, which has caused some difficulty for later taxonomists.

When Maria von Linden wrote her first paper on the mineral deposits in the River Hürbe it was read at Karlsruhe's geological society (by a man)[2] in 1890.

Friedrich August von Quenstedt.
Plate 102 from Die Ammoniten des Schwäbischen Jura (1883-85) by Friedrich August von Quenstedt.