共 54 条
[31]
MACDONALD KB, 1976, STRUCTURE CLASSIFICA, P87
[32]
MALCOLM SJ, 1982, SEDIMENT MICROBIOLOG, P1
[33]
MEYER D L, 1986, Palaios, V1, P294, DOI 10.2307/3514692
[34]
MORRIS SC, 1986, PALAEONTOLOGY, V29, P423
[36]
Nitecki M.H., 1979, MAZON CREEK FOSSILS, P69
[37]
PLOTNICK R E, 1986, Palaios, V1, P286, DOI 10.2307/3514691
[39]
REDFILED AS, 1958, AM SCI, V48, P206
[40]
RICHARDSON ES, 1971, 1969 P N AM PAL CONV, V1, P1222