thumb|Location in Ecuador and Peru thumb|Ceremonial site of Montegrande (archaeological site)|Montegrande in Peru showing a characteristic spiral construction
thumb|Location in Ecuador and Peru thumb|Ceremonial site of Montegrande (archaeological site)|Montegrande in Peru showing a characteristic spiral construction
The Mayo-Chinchipe or Mayo-Chinchipe-Marañon culture existed from c. 5500 – 1700 BCE in the highlands of what is now Ecuador and Peru, along the eastern slopes of the Amazonian Andes.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).