共 56 条
[11]
CHURKIN M, 1961, J PALEONTOL, V35, P168
[12]
Clarkson E. N. K., 1969, P185
[13]
ELDREDGE N, 1973, B AM MUS NAT HIST, V151, P289
[14]
Fletcher T. W, 1850, Q J GEOLOGICAL SOC L, V6, P235, DOI [10.1144/GSL.JGS.1850.006.01-02.22, DOI 10.1144/GSL.JGS.1850.006.01-02.22]
[15]
HOLLOWAY D J, 1974, Palaeontology (Oxford), V17, P409
[16]
Horny R, 1970, TYPE SPECIMENS FOSSI, V1
[17]
HU C, 1971, PALAEONTOGRAPHICA AM, V7
[19]
JACKSON D E, 1969, Journal of Paleontology, V43, P1114
[20]
LANE P D, 1972, Palaeontology (Oxford), V15, P336