共 32 条
[1]
ALMOND JE, PHILOS T R SOC LON B
[2]
BENGTSON S, 1976, Lethaia, V9, P185, DOI 10.1111/j.1502-3931.1976.tb00966.x
[3]
BENGTSON S, 1983, FOSSILS STRATA, V15, P5
[4]
Bergstrom J., 1976, PALAEONTOL Z, V50, P78, DOI DOI 10.1007/BF03001974
[5]
BERRY WC, COMMUNICATION
[6]
Briggs D.E.G., 1983, SP PAP PALAEONTOL, V30, P249
[8]
BROOKS HK, 1955, J PALEONTOL, V29, P852
[9]
Chlupae I., 1963, Paleontology, V6, P97