. "Paleobotanists" . "Zalessky, Mikhail"@en . "1877Z"^^ . "Mikhail Zalessky (Russian: \u041C\u0438\u0445\u0430\u0438\u043B \u0414\u043C\u0438\u0442\u0440\u0438\u0435\u0432\u0438\u0447 \u0417\u0430\u043B\u0435\u0441\u0441\u043A\u0438\u0439, Mikhail Dmitrievich Zalesskiy; 15 September 1877 \u2013 22 December 1946) was a Russian paleontologist and paleobotanist. His main focus was an investigation of plant remains in coals and oil shales.In 1911, Zalessky described a new type of petrified wood from the Donets Basin in Ukraine. He called the wood Callixylon, though he did not find any structures other than the trunk."@en . "1946Z"^^ . "Mikhail Zalessky"@en . . "Zalesski, Mihhail"@en . "1877-09-15Z"^^ . . "1946-12-22Z"^^ .