TY - SER AU - Gray,Jane AU - Beeunas,Mark AU - Knauth,Paul TI - Preserved stable isotopic signature of subaerial diagenesis in the 1.2-b: y Mescal Limestone, central Arizona implications for the timing and development of a terrestrial plant cover discussion and reply SN - 00167606 N1 - bibliogr. p. 1595 ER -