Ricerche biostratigrafiche nella sezione medio-triassica di Rio Pala Lunga (Forni di Sotto, Udine).

The main purpose of this thesis is to define biostratigraphically the fauna collected at the Rio della Pala Lunga, located around the Mount Clapsavon, Carnia, as suggested by researchers working at the Friulian Museum of Natural History. During the field investigation, more than 50 macrofossils were collected and successively cleaned, restored and classified, recognizing 14 different taxa belonging to the class Cephalopoda, 12 of which to the subclass Ammonoidea and 2 to the subclass Coleoidea; 3 belonging to the class Bivalvia and 1 to the class Gastropoda. Studying ammonoid taxa, the collected fauna has been attributed to the regoledanus Subzone, Upper Ladinian in age (Middle Triassic), in agreement with similar ammonoid associations collected in other areas of the Southern Alps.