Results 11 to 20 of about 77 (53)

Comments on the morphology of basal paravian shoulder girdle: New data based on unenlagiid Theropods and Paleognath birds [PDF]

, 2021
In 1976 John Ostrom published an enlightening paper about the anatomical transformations in the shoulder girdle and forelimb elements along the origin of birds.
Agnolin, Federico, Brissón Egli, Federico, Lo Coco, Gastón Ernesto, Motta, Matias Javier, Novas, Fernando Emilio, Rozadilla, Sebastian   +5 more
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New theropod dinosaur from the Upper Cretaceous of Patagonia sheds light on the paravian radiation in Gondwana [PDF]

, 2020
The fossil record of basal paravians in Gondwana is still poorly known, being limited to the Cretaceous unenlagiids from South America and the problematic Rahonavis from Madagascar.
Agnolin, Federico, Brissón Egli, Federico, Motta, Matias Javier, Novas, Fernando Emilio   +3 more
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Río Negro and its institutions in the development of paleoherpetological studies [PDF]

, 2022
Los museos e instituciones científicas de Río Negro jugaron un rol importante en el desarrollo de estudios paleoherpetológicos. Dichos estudios fueron mayormente conducidos por profesionales de instituciones de otras partes del país.
Salgado, Leonardo
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Basal paravian functional anatomy illuminated by high-detail body outline [PDF]

, 2017
Body shape is a fundamental expression of organismal biology, but its quantitative reconstruction in fossil vertebrates is rare. Due to the absence of fossilized soft tissue evidence, the functional consequences of basal paravian body shape and its ...
Falk, AR, Hartman, SA, Kaye, TG, Pittman, MD, Wang, XL, Xu, XX, Zheng, XT   +6 more
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Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina [PDF]

, 2021
The discovery of theropod shed teeth associated with sauropod remains is relatively common in Cretaceous deposits of Patagonia. However, only a handful of studies have thoroughly explored the phylogenetic affinities of the theropod dental material. Here,
Baiano, Mattia Antonio, Canale, Juan Ignacio, Díaz Martínez, Ignacio, Hendrickx, Christophe, Meso, Jorge Gustavo, Salgado, Leonardo   +5 more
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Re-evaluation of the Haarlem Archaeopteryx and the radiation of maniraptoran theropod dinosaurs [PDF]

, 2017
Archaeopteryx is an iconic fossil that has long been pivotal for our understanding of the origin of birds. Remains of this important taxon have only been found in the Late Jurassic lithographic limestones of Bavaria, Germany.
Foth, Christian, Rauhut, Oliver W. M.
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A new large-bodied oviraptorosaurian theropod dinosaur from the Latest Cretaceous of Western North America [PDF]

, 2014
The oviraptorosaurian theropod dinosaur clade Caenagnathidae has long been enigmatic due to the incomplete nature of nearly all described fossils. Here we describe Anzu wyliei gen. et sp.
A Averianov, A Elzanowski, AM Balanoff, AM Balanoff, AM Balanoff, CM Brown, CM Sternberg, CW Gilmore, D Hu, D Smith, DA Eberth, David C. Evans, DJ Varricchio, E Schachner, Emma R. Schachner, F Fanti, F Zhang, GM King, GS Bever, H Hasegawa, H Osmólska, H Osmólska, H-D Sues, Hans-Dieter Sues, HF Osborn, J Cracraft, J Lü, J Lü, J Lü, J Lü, JD Harris, JF Anderson, JM Clark, L Dingus, LE Zanno, LE Zanno, LE Zanno, M Kundrát, M Lamanna, MA Norell, MA Norell, Matthew C. Lamanna, MG Lockley, NR Longrich, NR Longrich, OC Marsh, P Christiansen, P Senter, P Senter, PA Goloboff, PJ Currie, PJ Currie, PJ Currie, PJ Makovicky, PJ Makovicky, Q Ji, Q Ji, R Barsbold, R Barsbold, R Barsbold, R Barsbold, R Barsbold, RM Sternberg, RM Sullivan, S Wang, SM Kurzanov, SM Kurzanov, SM Kurzanov, T He, T Maryańska, T Sato, TR Lyson, Tyler R. Lyson, WA Parks, X Wei, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, Y Yan, Z-H Zhou, Z-H Zhou, Z-M Dong   +85 more
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Mosaic evolution in an asymmetrically feathered troodontid dinosaur with transitional features [PDF]

, 2017
Asymmetrical feathers have been associated with flight capability but are also found in species that do not fly, and their appearance was a major event in feather evolution.
A Ennos, A Feduccia, AH Turner, ALR Thomas, AP Russell, C Foth, C Foth, C Swisher, CA Brochu, CA Forster, CW Gilmore, DA Russell, DE Alexander, DY Hu, F Jin, FV Huene, G Dyke, J Gauthier, J Hall, J Lü, JA Clarke, JC Lü, JH Ostrom, M Norell, MA Norell, MA Norell, NE Campione, OC Marsh, P Currie, P Godefroit, P Godefroit, P Senter, P Senter, PA Goloboff, PJ Makovicky, Q Ji, RB Irmis, RN Brandon, RO Prum, RÅ Norberg, S Ji, SJ Nesbitt, SL Brusatte, T Rowe, TA Dececchi, TG Kaye, TJ Feo, TJ Feo, TRJr Holtz, UM Norberg, VA Tucker, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, X Xu, XL Wang, XT Zheng, ZH Zhou   +70 more
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Theropod (Dinosauria) diversity from the Potiguar Basin (Early-Late Cretaceous Albian-Cenomanian), northeast Brazil [PDF]

, 2020
The theropod record from the Cretaceous of northeastern Brazil is rare and consists mostly of isolated and incomplete remains, with only four species described.
Agnolín, Anderson, Arai, Aranciaga-Rolando, Araripe, Barbosa, Benson, Benson, Bodin, Britt, Brusatte, Canale, Candeiro, Candeiro, Carlos Roberto dos Anjos Candeiro, Carrano, Carvalho, Cassab, Cavin, Contessi, Coria, Coria, Costa, Currie, Derby, Duarte, Duarte, Forster, Franco-Rosas, Frey, Gauthier, Gilmore, Guedes, Harris, Hendrickx, Hendrlrickx, Jokat, Kellner, Kellner, Kellner, Kellner, Kellner, Langer, Lilian Paglarelli Bergqvist, Macdonald, Madsen, Marsh, Marsh, Marsh, Martill, Martinelli, Mateus, Mawson, Medeiros, Medeiros, Motta, Motta, Mussa, Méndez, Naish, Novas, Novas, Novas, Ostrom, Paulo Victor Luiz Gomes da Costa Pereira, Pereira, Pereira, Pessoa Neto, Petri, Pletsch, Price, Price, Rauhut, Reyment, Rossetti, Rossetti, Russell, Santos, Seeley, Senter, Senter, Sereno, Sereno, Silva-Santos, Smith, Stephen Louis Brusatte, Stromer, Stromer, Sues, Tello Saenz, Theo Baptista Ribeiro, Thiago da Silva Marinho, Tykoski, Vasconcelos, Viramonte, Werner, Xu, Xu   +97 more
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Morphology and distribution of scales, dermal ossifications, and other non-feather integumentary structures in non-avialan theropod dinosaurs [PDF]

, 2022
Modern birds are typified by the presence of feathers, complex evolutionary innovations that were already widespread in the group of theropod dinosaurs (Maniraptoriformes) that include crown Aves.
Bell, Phil R., Cuesta Fidalgo, Elena, Currie, Philip J., Delcourt, Rafael, Hendrickx, Christophe Marie Fabian, Kaye, Thomas G., Loewen, Mark, Mateus, Octávio, Milner, Andrew R. C., O'Connor, Jingmai, Pittman, Michael   +10 more
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