First record of a mosasaurid (Squamata: Mosasauridae) from the Upper Cretaceous of Ecuador

Autores/as

  • Domenica N. Garzon Universidad de Valencia
  • Paul Arellano School of Informatics, Computing and Cyber Systems, Northern Arizona University
  • Jorge Toro-Álava Universidad de Investigación de Tecnología Experimental Yachay (Yachay Tech University)
  • José Luis Román-Carrión Departamento de Biología, Escuela Politécnica Nacional ( EPN )
  • Julián E. Ordoñez Universidad de Investigación de Tecnología Experimental Yachay (Yachay Tech University)
  • Pamela Andrade Universidad de Investigación de Tecnología Experimental Yachay (Yachay Tech University)
  • Carlos Mendoza-Ochoa Universidad de Investigación de Tecnología Experimental Yachay (Yachay Tech University)
  • Paula Ayala Universidad de Investigación de Tecnología Experimental Yachay (Yachay Tech University)
  • Mateo Oleas Universidad de Investigación de Tecnología Experimental Yachay (Yachay Tech University)
  • Anthony Vizcaino Universidad de Investigación de Tecnología Experimental Yachay (Yachay Tech University)
  • Nelson Mesías Jiménez-Orellana Facultad de Ingeniería en Ciencias de la Tierra, Escuela Politécnica del Litoral ( ESPOL ),

DOI:

https://doi.org/10.7203/sjp.29179

Palabras clave:

Mosasauridae, Amazon, Ecuador, Subandean Zone, Oriente Basin, Cretaceous.

Resumen

We report the first Upper Cretaceous marine reptile fossil in Ecuador, identified as an incomplete right maxilla from the Mosasauridae family. The remains were unearthed from marine marlstones and limestones within a karstic cave in the Tamia Yura indigenous community, situated northeast of Tena in the central Subandean Zone of the Ecuadorian Amazon. Morphological analysis reveals seven preserved teeth conical in shape. Stratigraphic analysis suggests the remains belong to the Middle Napo Fm, Oriente basin, indicating a presence from the Turonian to the end of the Coniacian. This discovery offers new insights into the study of Cretaceous marine reptiles in South America.

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Publicado

2024-07-23

Cómo citar

Garzon, D. N., Arellano, P., Toro-Álava, J., Román-Carrión, J. L., E. Ordoñez, J., Andrade, P., … Jiménez-Orellana, N. M. (2024). First record of a mosasaurid (Squamata: Mosasauridae) from the Upper Cretaceous of Ecuador. Spanish Journal of Palaeontology. https://doi.org/10.7203/sjp.29179
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