Primera evidencia de un dinosaurio saurópodo en la Formación Escucha (Utrillas, Teruel), Albiense medio (Cretácico inferior)

• J.I. Canudo ^[1] ; J.I. Ruiz-Omeñaca ^[1] ; L.M. Sender ^[1]
  1. [1] Universidad de Zaragoza

     Universidad de Zaragoza

     Zaragoza, España

     
• Localización: Geotemas (Madrid), ISSN 1576-5172, Nº. 6, 5, 2004 (Ejemplar dedicado a: VI CONGRESO GEOLÓGICO DE ESPAÑA, ZARAGOZA, 12-15 JULIO, 2004), págs. 27-30
• Idioma: español
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• Resumen

  • We describe an isolated dinosaur left ulna found in the continental and transitional sediments ofthe Escucha Formation (Middle Albian, Lower Cretaceous) in the Iberian Range, coming from Utrillas (Teruel province, NE Spain). The first dinosaur remain found in Spain, in the last quarter of the19th century, also comes from the coals of the Escucha Formation in Utrillas. However, until there covery of the ulna studied in this paper, no other vertebrate remains were found in this formationin 125 years. The ulna is broken, without the distal part. The proximal end is typically triradiate with a deep radial fossa. The oleacranon is prominent, projecting above the proximal articulation.The medial process is more expanded than the anterior and posterior ones. The morphology is close to other Laurasian Lower Cretaceous titanosauriforms, like Cedarosaurus from the USA, andis assigned to an indeterminated non-titanosaurian Titanosauriformes. This discovery suggests thata currently unnamed clade of basal titanosauriforms, previously recognised in the Upper Hauteri-vian-Lower Aptian of the Iberian Peninsula, survived in the Middle Albian