| Calcare di Sogno | |
|---|---|
| Stratigraphic range: Lower Toarcian-Late Bajocian ~ | |
| Type | Geological formation |
| Sub-units | Livello a Pesci |
| Underlies | Formazione delle Radiolariti |
| Overlies | Calcare di Domaro, Calcare di Morbio, Unnamed limestones[note 1] |
| Thickness | Typically 120–140 m (390–460 ft) East and west 70–100 m (230–330 ft) |
| Lithology | |
| Primary | Marl, marly limestone & abundance of clay Secondary: Alternation of marly limestones and marls, presence of graded Chalcudites |
| Other | Limestones with nodules of flint & subordinate marls |
| Location | |
| Coordinates | 45°48′N 9°18′E / 45.8°N 9.3°E |
| Approximate paleocoordinates | 33°24′N 18°54′E / 33.4°N 18.9°E |
| Region | Lecco Province |
| Country |  Italy |
| Type section | |
| Named for | Sogno |
| Named by | Gaetani & Poliani |
  Calcare di Sogno (Italy)  Calcare di Sogno (Lombardy) | |
The Calcare di Sogno ("Sogno Limestone"; also known as the Sogno Formation) is a geological formation in Italy, dated to roughly between 182-169 million years ago and covering the Lower Toarcian-Late Bajocian stagess of the Jurassic Period in the Mesozoic Era.[1] Thallatosuchian remains are known from the formation, as well fishes and other taxa.[2]
- ^ a b SGN (2000). "Carta Geologica d'Italia 1:50.000 – Catalogo delle Formazioni (Fascicolo I)". Quaderni, Serie III, del SGI. 7 (1): 22–31. Retrieved 10 May 2022.
- ^ Delfino, M.; Dal Sasso, C. (2006). "Marine reptiles (Thalattosuchia) from the Early Jurassic of Lombardy (northern Italy)". Geobios. 39 (2): 346–354. Bibcode:2006Geobi..39..346D. doi:10.1016/j.geobios.2005.01.001. hdl:2318/79280. S2CID 128423512. Retrieved 10 May 2022.
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