West Mexican shaft-tomb culture of the Tequila Valleys, known for circular stepped-pyramid ceremonial precincts unique in Mesoamerica.
The tradition and its circular guachimontones centres faded around 500 CE as the Epiclassic reordering of west Mexico set in.
Current scholarly synthesis of West Mexico's ancient cultures, covering the shaft-tomb tradition and the Teuchitlán world relevant to both Capacha and Teuchitlan readers.