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Author - title
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Year
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| details | Late Barremian | Early Aptian | Canada(Alberta) | Burden,E.T. et al. Illustrated key to genera of Lower Cretaceous terrestrial palynomorphs, (excluding megaspores), of Western Canada. (Stratigraphic ranges and sample locations taken from E.T.Burden,1982 - Lower Cretaceous terrestrial palynomorph biostratigraphy of the McMurray Formation, northeastern Alberta, Unpub.Phd Thesis) | 1989 |
| details | Late Barremian | Aptian | Austria | Corna,O. Palynological study and nannofossils. (In: Study of the Lower Cretaceous of the Vienna Woods. Grun et al) | 1972 |
| details | Berriasian | Aptian | Australia(W.Australia) | Backhouse,J. Late Jurassic and Early Cretaceous palynology of the Perth Basin, Western Australia | 1988 |