共 26 条
[1]
BONES TJ, 1979, OMSI OCCAS PAP NAT S, V1, P1
[6]
DILCHER DL, 1976, AM J BOT, V63, P532, DOI 10.2307/2441817
[7]
ELSIK WL, 1978, U TEXAS BUR ECON GEO, V90, P21
[8]
FREDERIKSEN N O, 1978, Palynology, V2, P113
[9]
HEIMSCH RH, 1939, AM J BOT, V26, P651
[10]
HERGERT HL, 1961, ORE BIN, V23, P55