Siltstone

Russia, Khabarovsk Territory. Dark gray, gray siltstones with interbeds of sandstones. Pionerskaya series. Thickness - 800 metres. Fossil: Aucella cf. keyserlingi lah., A. cf. inflata (Toula) lah., A. cf. voigensis lah., Polyptychites sp., Cladophlebis cf. nebbensis (Brongn.) Nath., Baiera pulchella Heer, Pittiophillum angust ifolium Nath., P. sp. Anomozamites sp. Lower Cretaceous. Valanginian.