@article{722229ebb42140c18149fca45862fc60,
title = "New information on ornithopod dinosaurs from the Late Jurassic of Portugal",
abstract = "Ornithopods are one of the most speciose group of herbivorous dinosaurs, rising during the Jurassic and getting extinct at the Cretaceous Paleogene boundary. However, most of the attention has been given to derived forms (hadrosaurids). Herein, cranial and post-cranial ornithopod material from the Upper Jurassic Lourinh{\~a} Formation and housed at Museu da Lourinh{\~a} is described and discussed. Comparison and phylogenetic analyses has allowed the attribution of the material either to Dryosauridae or to Ankylopollexia. The large-sized taxa conservatively ascribed to Ankylopollexia, resemble more closely Early Cretaceous styracosternans than Late Jurassic taxa. Due to the lack of autapomorphic characters, it was not possible to assign the material to any of the two valid Jurassic ornithopod Portuguese species, Draconyx loureiroi and Eousdryosaurus nanohallucis, although phylogenetic analyses hint a close relationship between the Lourinh{\~a} dryosaurid material and E. nanohallucis. Principal Component Analysis plotting limb bones proportions indicates a not fully mature ontogenetic stage for the Portuguese specimens. Comparing the Portuguese ornithopod fauna with the one in Morrison Formation and Kimmeridge Clay Formation, it is remarked the key-role of Portugal to understand biogeographic patterns in the distribution of iguanodontians.",
keywords = "Biogeograhy, Dinosauria, Iguanodontia, Jurassic, Lourinh{\~a} Formation, Ornithischia, Portugal, Systematics, Taxonomy",
author = "Rotatori, {Filippo Maria} and Miguel Moreno-Azanza and Oct{\'a}vio Mateus",
note = "Funding Information: We would like to thank the Museu da Lourinh{\~a} for providing specimens and facilities, especially: Carla-Alexandra Tom{\'a}s, Bruno Pereira, Alexandre Audigane, and Carla Abreu. To Jesper Mil{\`a}n (Geomuseum Faxe, Denmark) and Micael Martinho (ML) who found and prepared some of the specimens. We also thank the Sociedade de Historia Natural (Torres Vedras, Portugal) and in particular Bruno Camilo Silva and Joana Ferreira for providing access and assistance to the holotype of Eousdryosaurus nanohallucis. Cristiano Dal Sasso (Museu di Storia Naturale di Milano, Italy) provided comparison material and William Harcourt-Smith (American Museum of Natural History, New York City, USA) for helping with the morphometric analysis. We also thank all the members of the Lourinh{\~a} Paleoteam for their inputs in earlier versions of this manuscript. We thank the editor Stephen Brusatte (School of GeoSciences, The University of Edinburgh, Edinburgh, UK) and the reviewers Tom H{\"u}bner (Stiftung Schloss Friedenstein Gotha, Germany) and Peter Galton (University of Bridgeport, Connecticut, USA) for their comments, which greatly improved the quality of this manuscript. A special thanks to Vincent J. Cheng (ML) who proof-read this manuscript. FMR is supported by the Funda{\c c}{\~a}o para a Ci{\^e}ncia e a Tecnologia, Portugal (Grant SFRH/BD/146230/2019). MMA is supported by the Funda{\c c}{\~a}o para a Ci{\^e}ncia e a Tecnologia, Portugal (Grant SFRH/BPD/113130/2015). The research here presented has been supported by grants (GeoBioTec-NOVA and UIDB/04035/2020). ",
year = "2020",
doi = "10.4202/APP.00661.2019",
language = "English",
volume = "65",
pages = "35--57",
journal = "Acta Palaeontologica Polonica",
issn = "0567-7920",
publisher = "Institute of Paleobiology, Polish Academy of Sciences",
}