sentences:  The earlier construction phases of some palaces at Tamarindito exhibit different architectural styles and superior construction techniques to palaces at Dos Pilas in the 7th–8th centuries AD.The hillsides to the east of the site core were densely occupied with residential structures.Tamarindito exhibits some differences from other archaeological sites in the Petexbatún region, such as the lack of defensive walls, the presence of small groups of residential structures clustered around small central courtyards and the long "sacbe" causeway approaching the ceremonial core of the city.