 The accuracy of the cultural development is based on the ceramic sequences used to generate it.The chronology, together with the prevailing poor state of preservation of the ceramics involved, affect the way in which such development may be understood.Chronologies in neighboring areas have been refined (for instance Pool 1990, 1995; Stark 1989, 1995, 2001; Daneels 2002), and they represent a major comparative support for the present study.