Nicolai Ivanovich Andrusov

Nicolai Ivanovich Andrusov (Russian: Николай Иванович Андрусов, romanizedNikolay Ivanovich Andrusov; Ukrainian: Микола Іванович Андрусов, romanizedMykola Ivanovych Andrusov; 19 December 1861 – 27 April 1924) was a Russian geologist, stratigrapher and palaeontologist.