We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleTetrapod trackways from the early Middle Devonian period of Poland.AuthorsNiedźwiedzki, Grzegorz; Szrek, Piotr; Narkiewicz, Katarzyna; Narkiewicz, Marek; Ahlberg, Per E.PublicationNature, 2010, Vol 463, Issue 7277, p43ISSN0028-0836Publication typearticleDOI10.1038/nature08623