共 30 条
[21]
FOWELLS HA, 1965, USDA AGR HDB, V271
[22]
GRAHAM A, 1965, KENT STATE U B RES S, V9
[23]
MacGINITIE HARRY D., 1933, CARNEGIE INST WASHINGTON PUBL, V416, P21
[24]
MCQUEEN D R, 1969, Tuatara, V17, P13
[25]
Raven P. H., 1978, U CALIFORNIA PUBLICA
[26]
Rose R. L., 1969, NEVADA BUREAU MINES, V71, P1
[27]
SPICER RA, 1987, PALEOBIOLOGY, V13, P227
[29]
WHITTAKER R. H., 1961, MADRONO, V16, P5
[30]
Willden Ronald, 1974, NEVADA BUREAU MINES, V83