This paper gives a new locaticn for fossil oaks in Rettikhovka, Primoiye, USSR, from coal-bearing deposits of Miocene age. The large number of different oak species at the above site (leaf imprints) is evidence of their important role in the plant communities of the past. The authors agree with those scientists who maintain that the extant oaks in the Soviet Far East are of autochthonous origin. Two new fossil Quercus species with compound-lobed leaves are described, viz. Q. sichotensis Ablaev & Gorovoi and Q. sp.