A tall-spined ornithopod dinosaur from the Early Cretaceous of Salas de los Infantes (Burgos, Spain) |
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| Authors: | Xabier Pereda-Suberbiola José Ignacio Ruiz-Omeñaca Fidel Torcida Fernández-Baldor Michael W Maisch Pedro Huerta Rubén Contreras Luis Ángel Izquierdo Diego Montero Huerta Víctor Urién Montero Jochen Welle |
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| Institution: | aUniversidad del País Vasco/EHU, Facultad de Ciencia y Tecnología, Dpto. Estratigrafía y Paleontología, Apdo. 644, 48080 Bilbao, Spain;bMuseo del Jurásico de Asturias (MUJA), 33328 Colunga, Spain;cDepartamento de Geología, Universidad de Oviedo, c/Jesús Arias de Velasco s/n, 33005 Oviedo, Spain;dGrupo Aragosaurus-IUCA, Paleontología, Facultad de Ciencias, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain;eColectivo Arqueológico-Paleontológico de Salas (CAS), Museo de Dinosaurios, Plaza Jesús Aparicio 9, 09600 Salas de los Infantes, Burgos, Spain;fInstitut und Museum für Geologie und Paläontologie der Eberhard-Karls-Universität, Sigwartstrasse 10, 72076 Tübingen, Germany;gDepartamento de Geología, Universidad de Salamanca, Escuela Politécnica Superior de Ávila, 05003 Ávila, Spain |
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| Abstract: | A tall-spined ornithopod dinosaur from the Pinilla de los Moros Formation (Upper Hauterivian-Lower Barremian) of Salas de los Infantes (Burgos, Spain) is described. The material consists of seven associated axial remains, including five middle dorsal vertebrae, a fragmentary neural spine and a dorsal rib, from a single medium-sized individual. This material was previously referred to Iguanodon cf. fittoni. It is characterised by having a high dorsal neurapophysis that is approximately 4.5 times the height of the centrum. The elongation and vertical orientation of the dorsal neural spines allow it to be distinguished from other ornithopods from the Wealden of Europe, including Hypselospinus and Barilium from the Valanginian, and Iguanodon and Mantellisaurus from the Barremian-Aptian. The material is here referred to Iguanodontia indet. because it is so incomplete, but it is potentially a distinct taxon. Among the ornithopods, only Ouranosaurus and the hadrosaurid Hypacrosaurus possess higher dorsal neural spines. |
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| Keywords: | Ornithopoda Iguanodontia Early Cretaceous Iberian Peninsula Dorsal vertebrae |
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