Author:
Davey,R.J.
Year:
1969
Title:
The evolution of certain Upper Cretaceous Hystrichospheres from South Africa.
Reference:
Davey,R.J. (1969) The evolution of certain Upper Cretaceous Hystrichospheres from South Africa. Palaeontologia Africana Vol. 12 P. 25- 51
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Genus Species Country(Region) From To
Cordosphaeridium Cordosphaeridium bipolare Australia(Victoria) Early Eocene
Cordosphaeridium Cordosphaeridium fibrospinosum South Africa Late Campanian Early Danian
Cordosphaeridium Cordosphaeridium sp South Africa Late Campanian Early Danian
Exochosphaeridium Exochosphaeridium bifidum South Africa Campanian Early Danian
Exochosphaeridium Exochosphaeridium bifidum South Africa Late Campanian Early Danian