Primera evidencia de dientes aislados atribuidos a Spinosauridae (Theropoda) en el Aptiano inferior (Cretácico Inferior) de Europa: Formación Arcillas de Morella (España)
Abstract
Resumen. Se estudian 20 dientes de dinosaurios terópodos espinosáuridos del Aptiano inferior (Cretácico Inferior) de Morella (Castellón, España). Los dientes exhiben un mosaico de caracteres derivados para terópodos como son una ornamentación en crestas longitudinales junto con dentículos muy pequeños y de tamaño uniforme que los relaciona con los espinosáuridos barinonícinos como Baryonyx. Sin embargo presentan otros caracteres derivados ausentes en los espinosáuridos del Cretácico Inferior de Europa. Además los dientes comparten algunos caracteres con taxones gondwánicos como Suchomimus e Irritator. Abstract. FIRST EVIDENCE OF ISOLATED TEETH REFERRED TO SPINOSAURIDAE (THEROPODA) FROM THE LOWER APTIAN (LOWER CRETACEOUS FROM EUROPE: ARCILLASDE MORELLA FORMATION (SPAIN). In this work we study twenty teeth of spinosaurid theropod dinosaurs from the Early Aptian (Early Cretaceous) of Morella (Castellón, Spain). The teeth exhibit a mosaic of derived theropod characters such as ornamentation in longitudinal crests together with very small, uniformly sized denticles, which resemble baryonychine spinosaurids such as Baryonyx. However, they also display other derived characters not found in European Lower Cretaceous spinosaurids. Furthermore, the teeth share certain characters with Gondwanan taxa such as Suchomimus and Irritator.Downloads
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