“…The more recent island occupation, the Shoshonean period, was characterized by cremations, obsidian projectile points, pestles, metates, and sweathouses. Subsequent to Rogers' work in 1930, numerous culture histories have been proposed for the southern California region, including those by Chartkoff and Chartkoff (1984), King (1981), Kowta (1969), Moratto (1984), Orr (1968), Wallace (1955Wallace ( , 1978, and Warren (1968). In these, there have been efforts to refine San Nicolas Island culture chronologies.…”