Author:
Bergad,R.D.;Hall,J.W.
Year:
1971
Title:
A critical study of three Cretaceous Salviniaceous megaspores.
Reference:
Bergad,R.D. et al. (1971) A critical study of three Cretaceous Salviniaceous megaspores. American Journal of Botany Vol. 58 # 5 P. 468- 468
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Genus Species Country(Region) From To
Azolla Azolla barbata Montana Late Cretaceous
Azolla Azolla distincta Montana Late Cretaceous
Salvinia Salvinia spinata sp. nov. Montana Late Cretaceous