“…The overall characteristics and distribution of the Carmel Formation have been described by Baker, Dane, and Reeside (1936, p. 6, 45, 54, 58) and have been summarized recently by Wright and Dickey (1958, p. 174, 175;1963). The characteristics and distribution of the Arapien Shale have been described by Spieker (1946, p. 123-125), Hardy (1952a), Hardy and Zeller (1953, p. 1264-1266, and Willard and Callaghan (1962).…”