Figure 5. The Monte Facito Formation chaotic lithosomes: calcarenite slabs (Cs). (a) Calcarenite slabs alternating with radiolarian cherts at Pezza La Quagliara. Slab I consists of alternating calcarenites and red shales; slab II is mainly made by white-coloured calcarenites alternating

Figure 7. The Monte Facito Formation chaotic lithosomes: pebbly mudstones (Pm). (a) Pebbly mudstone textural characters exposed at La Cerchiara. Isolated, angular to sub-rounded clasts, provided by the calcarenite–shale interval, enclosed in a predominant or varicoloured shaly matrix. Note

Figure 8. The Monte Facito Formation chaotic lithosomes: monomict conglomerate/breccias (Mcb). (a) Monomict breccia recognized at Pezza La Quagliara. Although these deposits show strong similarities to pebbly mudstones, they importantly differ in clast composition. (b) Internal deformation

Fig. 10 Schematic stratigraphic column of the Monte Facito Formation reconstructed at the La Cerchiara outcrop. Legend: 1) olistoliths; 2) calcarenite slabs; 3) Paraconglomerato; 4) graded arenites; 5) shales; 6) cherty limestones; 7) laminated shales; 8) radiolarian-cherts; 9) carbonate build

Fig. 11 Simplified scheme showing the Monte Facito Formation basin configuration during the Middle-Upper Ladinian time. The location of the La Cerchiara area is also reported. Legend: 1) Permian-Middle Ladinian substrate; 2) carbonate build-ups; 3) Paraconglomerato; 4) carbonate olistoliths; 5

, depositional environments and the stratigraphic subdivision of the Monte Facito Formation adopted in this paper. In the stratigraphic intervals, the key localities suitable for observation of stratigraphic interval transitions are indicated. Abbreviations: BL – biogenic limestone interval; MF/CS – Monte Facito

Fig. 3 Chronostratigraphic columns showing a comparison between the stratigraphic subdivisions reported in previous study on the Monte Facito Formation. The different colours refer to the five stratigraphic intervals described in this paper: 1) Calcarenite-shale interval; 2) Sandstone-shale

Fig. 2. Stratigraphic sections for the study area. Af, Argille Varicolori and Flysch Rosso formations (late Cretaceous to Oligocene); AP, Apennine platform unit; CJl, Cretaceous and Jurassic limestone; Cs, Calcari con selce Formation (Late Triassic); Ga, Galestri Formation (Cretaceous); Mf, Monte

Figure 3. Representative stratigraphic sections measured in different localities in the study area. The main characteristics shown by the radiolarite–shale and cherty limestone – shale intervals of the Monte Facito Formation as well as lithology, facies and facies associations are reported. See

Figure 4. Sedimentary facies recognized in the upper portion of the Monte Facito Formation. F1 facies association: (a) carbonate olistoliths (Ol), provided by the bioclastic limestone interval, scattered in a radiolarite–shale matrix; (b) clast-supported carbonate breccias (Csb) recognized

Figure 15. Simplified sketches showing the tectono-stratigraphic organization of the Monte Facito Formation during the Meso-Cenozoic extensional and contractional stages which led to the building of the southern Apennine thrust belt (not to scale). (a) In the Middle Triassic, the MFF deep-water

recrystallization, which would easily induce a false description that the wall is microgranular or finely agglutinated. 3 Turriglomina scandonei Zaninetti, Ciarapica, Martini and Rettori, 1987 , holotype from the Ladinian Monte Facito Formation of the Southern Apennines, Italy. The early coiled portion is nearly