Evgeny Maleev

Evgeny Aleksandrovich Maleev [1] (Russian: Евгений Александрович Малеев, pronounced [jɪˈvɡenʲɪj ɐlʲɪˈksandrəvʲɪtɕ mɐˈlʲeɪf]; 1915–1966) was a Soviet paleontologist who named the armoured dinosaur Talarurus, the fearsome Tarbosaurus, and the enigmatic Therizinosaurus. Maleev did research on Tarbosaurus brains by cutting open fossilized braincases with a diamond saw. Modern researchers use computer tomography scans and 3D reconstruction software to visualize the interior of dinosaur endocrania, thus eliminating the need to damage valuable specimens.

...
Wikipedia