Jan Czerski
| Jan Czerski | |
|---|---|
| Czerski, 1879 | |
| Born | 15 May [O.S. 3 May] 1845 Swolna, Vitebsk Governorate, Russian Empire | 
| Died | 25 June [O.S. 7 July] 1892 (aged 47) | 
| Known for | paleontologist, osteologist, geologist, geographer and explorer of Siberia. The mountain range of the same name is named after Czerski. | 
| Awards | Large and Small gold, Silver medals of the Imperial Russian Geographical Society | 
| Signature | |
Jan Stanisław Franciszek Czerski, also known as Ivan Dementievich Chersky (Russian: Иван Дементьевич Черский) or Yan Dominikovich Chersky (Russian: Ян Доминикович Черский; 15 May [O.S. 3 May] 1845 – 25 June [O.S. 7 July] 1892), was a Polish, Belarusian, and Russian paleontologist, osteologist, geologist, geographer and explorer of Siberia.
He was exiled to Transbaikalia for participating in the January Uprising of 1863. A self-taught scientist, he eventually received three gold medals from the Russian Geographical Society, and his name was given to a settlement, two mountain ranges, several peaks and other sites. He authored the first map of Lake Baikal.