Global radiolarian zonation for the Pliensbachian, Toarcian and Aalenian
E. S. Carter,
S. Gori an,
J. Guex,
L. O'Dogherty,
P. De Wever,
P. Dumitrica,
R. S. Hori,
A. Matsuoka, and
P. A. Whalen
2010
Article
Palaeogeography, Palaeoclimatology, Palaeoecology
297:401-419
Find it at:
http://dx.doi.org/10.1016/j.palaeo.2010.08.024