Author:
Griffis,K.G.;Chapman,D.J.
Year:
1990
Title:
Modelling Cretaceous-Tertiary boundary events with extant photosynthetic plankton, effects of impact related acid rain.
Reference:
Griffis,K.G. et al. (1990) Modelling Cretaceous-Tertiary boundary events with extant photosynthetic plankton, effects of impact related acid rain. Lethaia Vol. 23 # 4 P. 379- 383
Google Academy:
try to search by title in english
Genus Species Country(Region) From To
Gonyaulax Gonyaulax polyedra Nd Late Cretaceous Early Tertiary
Thoracosphaera Thoracosphaera heimii Nd Late Cretaceous Early Tertiary