Tooth replacement in a sauropod premaxilla from the Upper Cretaceous of Patagonia, Argentina

Authors

  • Rodolfo A. Coria
  • Luis M. Chiappe

Abstract

Anatomy and tooth replacement mechanism observed in a sauropod dinosaur left premaxilla from the Late Cretaceous of Patagonia are described. The specimen is assigned to Neosauropoda, and with doubts to Titanosauridae, due the presence of a stepped anterior margin, and long and cylindrical teeth with no denticles. The specimen presents a dental settlement pattern performed by intra-alveolar packages of four dental elements, one functional and three germinals, which compose a comb-like arrangement only recorded in diplodocid and titanosaurid sauropods.

Author Biography

Rodolfo A. Coria

Licienciada en Biología con Orientación en Paleontología, estudiante de la Carrera de Doctorado en Ciencias Biológicas de la Facultad de Ciencias Exactas y Naturales, UBA.

Published

2014-02-20

How to Cite

Coria, R. A., & Chiappe, L. M. (2014). Tooth replacement in a sauropod premaxilla from the Upper Cretaceous of Patagonia, Argentina. Ameghiniana, 38(4), 463-466. Retrieved from https://ameghiniana.org.ar/index.php/ameghiniana/article/view/2637

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