Daniel Gottlieb Messerschmidt

Daniel Gottlieb Messerschmidt (Russian: Да́ниэль Го́тлиб Ме́ссершмидт; September 16, 1685 – March 25, 1735) was an ethnic German physician, naturalist and geographer who lived in the Polish–Lithuanian Commonwealth and later in the Russian Empire. He was among the first to conduct a scientific exploration of Siberia, which led to the unearthing of the first fossil mammoth.