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Dinosaur palaeoneurology: an evolving science.

Amy M Balanoff1

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The study of dinosaur brains, or palaeoneurology, is advancing evolutionary neuroscience. Improved methods and frameworks are enabling new discoveries about dinosaur cognition and the evolution of bird locomotion.

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Area of Science:

  • Paleoneurology
  • Evolutionary Neuroscience
  • Comparative Neuroanatomy

Background:

  • The study of dinosaur brains has a long history, reflecting the broader field of paleoneurology.
  • Understanding dinosaur brain capabilities is crucial for evolutionary neuroscience.
  • The field faces challenges including phylogenetic stability and endocast construction methods.

Purpose of the Study:

  • To explore the heuristic potential of the relationship between paleoneurology and evolutionary neuroscience.
  • To outline current advances in dinosaur paleoneurology.
  • To highlight the potential for studying other dinosaur groups and using the dinosaur-bird lineage as a model for encephalization.

Main Methods:

  • Reviewing historical studies in paleoneurology.
  • Analyzing dinosaur brain size, shape, and behavioral correlates.
  • Examining the developmental role of dinosaur brains.
  • Focusing on theropod dinosaurs and the origin of birds.

Main Results:

  • Progress in phylogenetic frameworks and endocast methods is setting the stage for mature paleoneurology.
  • Dinosaur brain studies can inform neuroscience discoveries.
  • Theropod examples illustrate advances in understanding locomotion and bird origins.

Conclusions:

  • Paleoneurology is poised to drive, not just be informed by, neuroscience.
  • The dinosaur-bird lineage offers a valuable model for studying encephalization, comparable to mammals.
  • Further research across diverse dinosaur groups is encouraged.