Ammonoids, nautiloids, and brachiopods ofthe Solonchan Formation ofthe Western Verkhoyansk Region are studied in the present paper. The ammonoids indicate two Upper Bashkirian genus zones: Branneroceras-Gastrioceras and Diaboloceras-Axinolobus. New nauriloid species Adnatoceras boreale, Thrincoceras verkhoyanicum, and the new ammonoid species Glaphyrites operosus, Syngastrioceras paraglobosum, Paraschartymites sakhaensis, Bisatoceras baraiense, and Mezorulganites Ьirandensis, and the stratigraphically important species Yakutoceras aldanicum Librovich are described.