共 18 条
[1]
Altschuler Z.S., 1958, 314D US GEOL SURV, P45
[2]
Barnes C. R., 1973, CONODONT PALEOZOOLOG, P1
[3]
CARPENTER BS, 1974, NBS26049 SPEC PUBL
[4]
EPSTEIN AG, 1977, 995 US GEOL SURV PRO
[6]
FLEISCHER RL, 1975, NUCLEAR TRACKS SOLID
[7]
Hass W. H., 1959, 294J US GEOL SURV PR, V294-J, P365
[8]
HEDBERG HD, 1978, CONTRIBUTIONS GEOLOG
[9]
Hedberg HD, 1976, INT STRATIGRAPHIC GU
[10]
Lindstrom M, 1964, CONODONTS