BRIEF COMMENT ON THE BRAIN AND INNER EAR OF GIGANOTOSAURUS CAROLINII (DINOSAURIA: THEROPODA) BASED ON CT SCANS

Authors

  • Ariana Paulina-Carabajal Instituto de Investigaciones en Biodiversidad y Medioambiente (CONICET-UNCO), Quintral 1250, R8400FRF San Carlos de Bariloche, Río Negro
  • Mauro Nicolás Nieto Centro de Investigaciones en Ciencias de la Tierra (CICTERRA), Universidad Nacional de Córdoba, CONICET, Av. Vélez Sársfield 1611, X5016GCA Córdoba

DOI:

https://doi.org/10.5710/AMGH.25.10.2019.3237

Keywords:

Paleoneurology, Cranial Endocast, Endosseous Labyrinth, Carcharodontosauridae

Abstract

The endocranial morphology of the carcharodontosaurinae theropod Giganotosaurus carolinii is known from a latex cranial endocast, which lacks however, information such as the extent of the flocculus of the cerebellum or the length of the passages for most of the neurovascular elements. A recently made X-ray CT scan allowed a more accurate interpretation of the cranial nerves, plus the first reconstruction of the inner ear, which is the most complete for a member of the clade so far. The inner ear morphology shares with that of Carcharodontosaurus saharicus, markedly triangular semicircular canals in lateral view, and a simple and conical lagena with a slightly enlarged distal end.

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Published

2020-03-31

Issue

Vol. 57 No. 1 (2020)

Section

Paleontological Notes

License

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How to Cite

BRIEF COMMENT ON THE BRAIN AND INNER EAR OF GIGANOTOSAURUS CAROLINII (DINOSAURIA: THEROPODA) BASED ON CT SCANS. (2020). Ameghiniana, 57(1), 58-62. https://doi.org/10.5710/AMGH.25.10.2019.3237