共 16 条
[1]
Chmura C. A., 1973, PALAEONTOGRAPHICA B, V141, P89
[4]
CREPET WL, 1979, NATL GEOGR SOC RES R, V20, P109
[6]
ELSIK WL, 1978, U TEXAS BUR ECON GEO, V90, P21
[7]
GALLOWAY WE, 1977, U TEXAS BUR EC GEOL, P87
[8]
Harland W. B., 1982, GEOLOGIC TIME SCALE
[9]
Murray G.E., 1961, GEOLOGY ATLANTIC GUL
[10]
NIXON KC, 1985, AM J BOT, V72, P934