| details |
Early Cretaceous |
|
Argentina(Santa Cruz) |
Batten,D.J. et al. Cabochonicus, a new genus for species of gemmate megaspores previously referred to Verrutriletes. |
1987 |
| details |
Berriasian |
Hauterivian |
Worldwide |
Kovach,W.L. et al. Worldwide stratigraphic occurrences of Mesozoic and Tertiary megaspores. |
1989 |
| details |
Berriasian |
Hauterivian |
Argentina |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Mesozoic |
|
Nd |
Kovach,W.L. A review of Mesozoic megaspore-ultrastructure. (In: Ultrastructure of Fossil Spores and Pollen. M.H.Kurmann and J.A.Doyle, editors) |
1994 |