Tsugoid forms
- Citations total:
- 3
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| details | Late Eocene | Oligocene | E.Germany | Krutzsch,W. Eocene spore stratigraphy: Table 2. (Stratigraphic classification of spores from Upper Tertiary in North Central Europe.) | 1966 |
| details | Kimmeridgian | Early Cretaceous | Iowa | Cross,A.T. Palynological evidence of Mid-Mesozoic age of Fort Dodge (Iowa) Gypsum | 1966 |
| details | Eocene | Europe | Krutzsch,W. The stratigraphicly useful spore and pollen forms of the Middle European Lower Tertiary | 1967 |