

An Austrian baron who mapped the ancient plant life of Europe, creating foundational visual guides to a lost botanical world.
Constantin von Ettingshausen was an aristocrat of science, a baron who devoted his life to deciphering the history of plants locked within stone. As a professor of botany in Graz and Vienna, he was a central figure in the 19th-century boom in paleobotany. His most enduring work was not just in discovery, but in meticulous documentation. He pioneered the use of detailed, comparative illustrations to classify fossil plants, publishing massive atlases that depicted the flora of the Tertiary period across Europe. His methods helped standardize the field, allowing scientists to correlate fossil finds across continents and understand the climatic changes of the deep past. Though some of his theoretical ideas on plant migration were later challenged, his vast illustrated catalogues remain a critical visual archive of Earth's botanical heritage.
The biggest hits of 1826
The world at every milestone
Statue of Liberty dedicated in New York Harbor
First modern Olympic Games held in Athens
He was the son of the physicist Andreas von Ettingshausen, who co-discovered the Ettingshausen effect.
His fossil plant collection, one of the largest of its time, is held by the Natural History Museum in Vienna.
He was a corresponding member of numerous European scientific academies.
“This fossil leaf is a direct telegram from the Tertiary period.”