'''''Tratayenia''''' adalah sebuah [[genus]] [[dinosarusdinosaurus]] [[teropoda]] [[megaraptora]] punah yang jasadnya ditemukan di [[Formasi Bajo de la Carpa]], [[Argentina]] dari zaman [[Santonian]].<ref name="Porfiri 2018">{{cite journal|last1=Porfiri|first1=Juan D|last2=Juárez Valieri|first2=Rubén D|last3=Santos|first3=Domenica D.D|last4=Lamanna|first4=Matthew C|year=2018|title=A new megaraptoran theropod dinosaur from the Upper Cretaceous Bajo de la Carpa Formation of northwestern Patagonia|url=https://www.researchgate.net/publication/323878344|journal=Cretaceous Research|volume=89|pages=302–319|doi=10.1016/j.cretres.2018.03.014}}</ref> Spesies tipe dan satu-satunya, '''''Tratayenia rosalesi''''', dideskripsikan pada Maret 2018.<ref name="Fonseca 2018">{{Cite web|url=https://www.paleowire.com/just-out-a-new-megaraptoran-theropod-dinosaur-from-the-upper-cretaceous-bajo-de-la-carpa-formation-of-northwestern-patagonia-cretaceous-research/|title=Just out {{!}} A new megaraptoran theropod dinosaur from the Upper Cretaceous Bajo de la Carpa Formation of northwestern Patagonia @ Cretaceous Research|last=Fonseca|first=Lurdes|date=28 March 2018|website=Paleowire|language=en-US|access-date=2021-04-04|archive-date=2020-03-26|archive-url=https://web.archive.org/web/20200326120503/https://www.paleowire.com/just-out-a-new-megaraptoran-theropod-dinosaur-from-the-upper-cretaceous-bajo-de-la-carpa-formation-of-northwestern-patagonia-cretaceous-research/|dead-url=yes}}</ref>
