共 8 条
[1]
ELLES GL, 1901, MONOGR PALAEONTOGR S
[2]
HOLLAND CH, 1963, B BRIT MUS NAT HIST, V8
[3]
JAEGER H, 1964, ABHANDL DEUTSCH AKAD, P28
[4]
KUHNE WG, 1955, N JB GEOL PALAEONT, P350
[5]
MURCHISON RI, 1939, SILURIAN SYSTEM
[6]
PERNER J, 1899, PALAEONTOGR BOHEMIAE
[7]
POCOCK RW, 1938, MEM GEOL SURV UK
[8]
Wood E. M. R., 1900, Quart J Geol Surv, V56, P415