The tracks of giant theropods (Jurabrontes curtedulensis ichnogen. & ichnosp. nov.) from the Late Jurassic of NW Switzerland : palaeoecological & palaeogeographical implications
Marty, Daniel (Office de la culture. Section d'archéologie et paléontologie (Switzerland))
Belvedere, Matteo (Office de la culture. Section d'archéologie et paléontologie (Switzerland))
Razzolini, Novella L. (Institut Català de Paleontologia Miquel Crusafont)
Lockley, Martin G. (University of Colorado Denver. Dinosaur Tracks Museum)
Paratte, Géraldine (Office de la culture. Section d'archéologie et paléontologie (Switzerland))
Cattin, Marielle (Office de la culture. Section d'archéologie et paléontologie (Switzerland))
Lovis, Christel (Office de la culture. Section d'archéologie et paléontologie (Switzerland))
Meyer, Christian A. (Naturhistorisches Museum Basel (Switzerland))

Date:	2018
Abstract:	Jurabrontes curtedulensis, a new ichnogenus and species of Late Jurassic giant theropod dinosaur track is described based on very well-preserved and morphologically-distinct tracks, all carefully excavated along federal highway A16 (Canton Jura, NW Switzerland). All trackways were systematically documented including parameter measurements, descriptions, outline drawings, orthophotos and laserscans. Jurabrontes is characterised by sub-equal track length and width, a small anterior triangle, weak mesaxony, three blunt digits (dII-III-IV) with pronounced (sub)triangular claw marks, a rounded heel, and clear phalangeal pad impressions. The combination of features of Jurabrontes is typical for a theropod (and not ornithopod) trackmaker. Jurabrontes is compared to other similar ichnotaxa and unnamed tracks of large theropods from the Early Jurassic to Late Cretaceous, from which it is clearly different. The sheer size of the largest tracks, that are amongst the largest worldwide and of similar size to Tyrannosauripus from the Late Cretaceous, suggests a 'megalosaurid' or large allosaurid theropod as a trackmaker. The presence of such large theropod tracks in tidal-flat deposits of the Jura carbonate platform and associated with small to large sauropod tracks has important palaeoecological implications for the dinosaur community and for palaeoenvironmental and palaeogeographical reconstructions. Jurabrontes - urn:lsid:zoobank. org:act:B482D2AF-637A-4B2D-8B0B-FEAD54CA2A26 J. curtedulensis- urn:lsid:zoobank. org:act:30D45944-5A2B-45E1-89B9-20298E475D51.
Grants:	Ministerio de Economía y Competitividad BES-2012-051847
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Tridactyl dinosaur footprint ; Eubrontidae ; Ichnotaxonomy ; Megalosaurid theropods ; Kimmeridgian
Published in:	Historical biology, Vol. 30, Issue 7 (June 2018) , p. 928-956, ISSN 1029-2381

DOI: 10.1080/08912963.2017.1324438

30 p, 13.9 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Institut Català de Paleontologia Miquel Crusafont (ICP)
Articles > Research articles
Articles > Published articles