Russia, Jewish Autonomous Region. Massive, colored siliceous rocks. Middle-Upper Carboniferous. Ulunskaya series. Thickness - 800 metres. In the rocks, the indefinite remains of radiolarians. Age is determined relatively. C<sub>2-3</sub>ul.
Sardinia, Gola di Gorropu. Upper Jurassic succession of Easern Sardinia. Bioclastic limestones, oolitic cherty limestones and mudstones, of littoral-cricalittoral environment, with algae, benthic foraminifer and nerineids. Alternatively: Dogger-Malm.
Sardinia, Cala Luna. Upper Jurassic succession of Easern Sardinia. Karst cave in the gorge wall. Bioclastic limestones, oolitic cherty limestones and mudstones, of littoral-cricalittoral environment, with algae, benthic foraminifer and nerineids. Alternatively: Dogger-Malm.