Avian pallium

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In the anatomy of animals, an avian pallium is the dorsal telencephalon of a bird's brain. The subpallium is the ventral telencephalon.

Pallium of avian species tend to be relatively large, comprising ~75% of the telencephalic volume. Birds have a unique pallial structure known as the hyperpallium, once called the hyperstriatum.

A 2002 conference at Duke University established a standard nomenclature for describing the avian pallium as follows:

Pallium
- pyriform cortex
- olfactory bulb
- hippocampus
- corticoid area
- hyperpallium
  - apicale
  - intercalatum
  - densocellulare
- mesopallium
  - dorsale
  - ventrale
- nidopallium
  - field L2
  - entopallium
  - basorostralis
- arcopallium
- amygdaloid complex
  - posterior amygdala
  - nucleus taeniae
Subpallium
- striatum
  - lateral
  - medial
- pallidum
  - globus pallidus or dorsal pallidum
  - ventral pallidum

For more information, see: http://www.avianbrain.org/new_terminology.html