Also known as archipallium
The archicortex, or archipallium, is the phylogenetically second oldest region of the brain's cerebral cortex (the oldest is the paleocortex). In older species, such as fish, the archipallium makes up most of the cerebrum. Amphibians develop an archipallium and paleopallium.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).