In my chronology the Early Formative is divided into two phases. The Early Formative 1 is equivalent to the Early Chiripa phase, while the Early Formative 2 is equivalent to the Middle Chiripa phase. It is worth noting here that these two phases are used here as defined by Lee Steadman ([Steadman 1999]) using data from recent excavations at Chiripa (1992-1998) of the Taraco Archaeological Project (see papers in [Hastorf 1999]). They are therefore equivalent neither to the Early and Middle Chiripa phases of Kidder and Mohr ([Mohr 1966,Chávez 1988]), nor to Browman's Condori and Llusco phases ([Browman 1978a,Browman 1980]). Rather, they constitute new phase definitions based upon an enlarged ceramic sample. Early and Middle Chiripa occupations were identified using a frequency profile analysis of surface ceramics, as explained in detail in Chapter 3.