doi:10.1038/srep42778engSalgado, L.Canudo, J.I.Garrido, A.C.Moreno-Azanza, M.Martínez, L.C.A.Coria, R.A.Gasca, J.M.A new primitive Neornithischian dinosaur from the Jurassic of Patagonia with gut contentsART-2017-98228We describe a new species of an ornithischian dinosaur, Isaberrysaura mollensis gen. et sp. nov. The specimen, consisting in an almost complete skull and incomplete postcranium was collected from the marine-deltaic deposits of the Los Molles Formation (Toarcian-Bajocian), being the first reported dinosaur for this unit, one of the oldest from Neuquén Basin, and the first neornithischian dinosaur known from the Jurassic of South America. Despite showing a general stegosaurian appearance, the extensive phylogenetic analysis carried out depicts Isaberrysaura mollensis gen. et sp. nov. as a basal ornithopod, suggesting that both Thyreophora and neornithischians could have achieved significant convergent features. The specimen was preserved articulated and with some of its gut content place in the middle-posterior part of the thoracic cavity. Such stomach content was identified as seeds, most of them belonging to the Cycadales group. This finding reveals a possible and unexpected role of this ornithischian species as seed-dispersal agent.2017http://zaguan.unizar.es/record/6068010.1038/srep42778http://zaguan.unizar.es/record/60680oai:zaguan.unizar.es:60680info:eu-repo/grantAgreement/ES/DGA/B24-211130info:eu-repo/grantAgreement/ES/MINECO/CGL2014-53548-PScientific reports 7 (2017), 42778 [10 pp]byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess