The oldest sedimentary rocks of Ticino
|(CH 1903)||E 714225||N 99445||H 405.0|
|(WGS 84)||Long. 8.914||Lat. 46.037|
Stratigraphie, Sedimentology, Paleontology
The quartz conglomerates of Manno are of considerable scientific interest as they constitute the oldest sedimentary rocks of Ticino. The discovery of two Sigillarian fossil trunks trapped in sediments has indeed made it possible to trace their formation to the Westphalian Stage of the Carboniferous Period. Among other important plant fossils which have been found are the remains of Lepidodendron, Calamites, Pecopteris, Callipteridium and Neuropteris. These are the oldest traces of life in Ticino. Their presence testifies that at that time our region was in a tropical zone next to the equator and was dominated by a warm and humid climate.
From exit 49 of the A2 (Lugano north) follow the signs for Manno. Bypass the town of Manno and head towards Arosio. Before entering the forest, turn left and go down for 200 metres.
The first station of the educational trail is located next to the parking lot.
AA.VV. (2008): I geositi dell’Insubria, Un itinerario lungo 350 milioni di anni. 68-71.
COTTI G. et al. (1990): Introduzione al paesaggio naturale del Cantone Ticino. Vol. 1, Le componenti naturali, Bellinzona, 484 pp.