MEGALANCOSAURUS, A POSSIBLY ARBOREAL ARCHOSAUROMORPH (REPTILIA) FROM THE UPPER TRIASSIC OF NORTHERN ITALY

The Late Triassic reptile Megalancosaurus preonensis Calzavara et al., 1980, was previously known from a single incomplete specimen collecte d from the Norian ''Dolomia di Forni'' at the locality of val Preone, near Ampezzo Carnico (Udine, Friuli, northern Italy). The recent disco very of a new specimen in the Zorzino Limestone, also of Norian age, a t a locality near Zogno (Bergamo Prealps, Lombardy, northern Italy) al lows a more complete description of the skeleton of Megalancosaurus pr eonensis and attribution of three other specimens, previously interpre ted as juvenile individuals of Drepanosaurus unguicaudatus to the same taxon. Megalancosaurus was a small reptile with a high degree of adap tation toward arboreal life, and is probably an archosauromorph.