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A new contribution to our knowledge of the large-bodied theropods from the Barremian of the Iberian Peninsula: the “Barranco del Hocino” site (Spain)

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Abstract

Introduction

Barranco del Hocino-1 is a new fossil site located near Estercuel, Teruel province, Spain. The fossil site is located geologically within the Oliete sub-basin, in the Blesa Formation (Barremian in age). Barranco del Hocino-1 shows a diverse assemblage of tetrapod vertebrates similar to other sites in the Blesa Formation.

Materials and methods

Six isolated teeth belonging to Theropoda have been found. A study of their qualitative and quantitative characters, along with statistical (DFA) and cladistic analyses, enable us to identify four different dental morphotypes.

Results

These morphotypes belong to separate tetanuran theropod taxa. One is related to Spinosauridae. The other morphotypes show affinities with non-spinosaurid tetanurans, probably related to Carcharodontosauria.

Conclusions

The results are congruent with the known theropod record of the Iberian Peninsula and western Europe. This work is a new contribution to what is known of the palaeobiodiversity and distribution of large-bodied theropods from the Barremian of the Iberian Peninsula.

Resumen

Introducción

Barranco del Hocino-1 es un nuevo yacimiento localizado en el entorno de Estercuel, provincial de Teruel (España). Geológicamente se sitúa en la Formación Blesa (subcuenca de Oliete) de edad Barremiense. El yacimiento presenta una asociación diversa de vertebrados similar a otros de la misma formación.

Materiales y métodos

Se han encontrado seis dientes aislados de dinosaurios terópodos. Mediante el estudio de los caracteres cualitativos y cuantitativos junto con el uso de análisis estadístico multivariante (DFA) y análisis cladístico se han podido identificar cuatro morfotipos diferentes.

Resultados

Los morfotipos identificados pertenecen a diferentes grupos de tetanuros basales. Uno de los morfotipos está relacionado con Spinosauridae, mientras que el resto presentan afinidades con tetanuros no espinosáuridos, posiblemente relacionados con el clado Carcharodontosauria.

Conclusiones

Los resultados son coherentes con el registro de terópodos conocido tanto en la península ibérica y Europa Occidental durante el Cretácico Inferior. El hallazgo supone una nueva contribución al conocimiento de la paleobiodiversidad y distribución de grandes terópodos del Barremiense de la península ibérica.

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Acknowledgements

This paper forms part of the project CGL2014-53548 and is subsidized by the Spanish Ministry of Economy and Competitiveness, the European Regional Development Fund, and the Government of Aragón (Grupos Consolidados). Antonio Alonso is the recipient of a Ph.D. Grant from the DGA (Diputación General de Aragón). José Manuel Gasca is supported by the Ministerio de Ciencia, Tecnología e Innovación Productiva, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) of Argentina (Postdoctoral Fellowship). Pablo Navarro-Lorbés is supported by a Ph.D. fellowship of the Government of La Rioja. The authors thank the Town Council of Estercuel, the Caja Rural de Teruel and the Provincial Deputation of Teruel for the funding provided, the General Direction of Cultural Patrimony of the Government of Aragón for authorizing the fieldwork, and Javier Rubio of Paleoymás for the photographs of the theropod teeth. Miguel Moreno-Azanza helped with cladistic analyses and Carmen Núñez-Lahuerta provided help with photographs. We especially thank Juan Rubio and Australair SL for their help, funding and participation in the fieldwork. Finally, we thank Christophe Hendrickx, Julio Company and the anonymous reviewers for the useful comments that resulted in substantial improvements to the manuscript, and Rupert Glasgow, who edited the text in English.

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Authors and Affiliations

  1. Grupo Aragosaurus-IUCA, Área de Paleontología, Facultad de Ciencias, Universidad de Zaragoza, C/ Pedro Cerbuna 12, 50009, Zaragoza, Zaragoza, Spain

    A. Alonso, P. Navarro-Lorbés & J. I. Canudo

  2. CONICET-Museo Olsacher, Zapala, Neuquén, Argentina

    J. M. Gasca

  3. Cátedra Extraordinaria de Paleontología, Departamento de Ciencias Humanas, Universidad de La Rioja, C/ Luis de Ulloa 2, 26004, Logroño, La Rioja, Spain

    P. Navarro-Lorbés

  4. Paleoymás S.L. Pol. Empresarium, C/ Retama 17, Nave 24C, 50720, La Cartuja Baja, Zaragoza, Spain

    C. Rubio

  5. Museo de Ciencias Naturales de la Universidad de Zaragoza, Plaza Basilio Paraíso, 50008, Zaragoza, Zaragoza, Spain

    J. I. Canudo

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  1. A. Alonso
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  2. J. M. Gasca
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  3. P. Navarro-Lorbés
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  4. C. Rubio
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  5. J. I. Canudo
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Corresponding author

Correspondence to A. Alonso.

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Alonso, A., Gasca, J.M., Navarro-Lorbés, P. et al. A new contribution to our knowledge of the large-bodied theropods from the Barremian of the Iberian Peninsula: the “Barranco del Hocino” site (Spain). J Iber Geol 44, 7–23 (2018). https://doi.org/10.1007/s41513-018-0051-9

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  • DOI: https://doi.org/10.1007/s41513-018-0051-9

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