New dinosaur tracks from the Dolomia Principale (Upper Triassic) of the Carnic Prealps (Friuli-Venezia Giulia, NE Italy)

作者：Marzola Marco^*; Marco Dalla Vecchia Fabio

来源：Bollettino della Societa Paleontologica Italiana, 2014, 53(1): 1-18.

DOI：10.4435/BSPI.2014.01

• Dinosaur tracks
• tridactyl footprints
• Anchisauripus
• Dolomia Principale
• Parco Dolomiti Friulane
• Upper Triassic
• Italy

Ten new track-bearing boulders discovered in the Parco Naturale delle Dolomiti Friulane area (Carnic Prealps, NE Italy) during the last 15 years demonstrate that bipedal dinosaurs with a functionally tridaciyl, digitigrade pes, within the size-class of the ichnogenus Anchisauripus Lull, 1904, were the most common trackmakers in the carbonate tidal flats of the Dolomia Principale during the latest Triassic. If the footprint morphology actually reflects the functional tridactyl condition of the trackmakers 'feet, theropods are the most suitable trackmakers. The ichnoassociation of the Parco delle Dolomiti Friulane area differs from coeval ichnoassociations in the dominance of mid-sized tridactyl foolprints and the rarity of small tridactyl (Grallator Hitchcock, 1858; length <15 cm) and chirotheriid tracks. Tracks potentially produced by basal sauropodomorphs, which were the most common European dinosaurs in the late Norian-Rhaetian interval, are underrepresented.

• 出版日期2014