| link
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From
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To
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Geolocation
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Author - title
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Year
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|---|---|---|---|---|---|
| details | Albian | Canada(NWT,Mackenzie) | McGregor,D.C. Triassic, Jurassic and Lower Cretaceous spores and pollen of Arctic Canada. | 1965 | |
| details | Cretaceous | Canada(W.Canada) | Pocock,S.A.J. Microfloral analysis and age determination of strata at the Jurassic-Cretaceous boundary in the Western Canada Plains | 1962 | |
| details | Valanginian | Barremian | England(Dorset) | Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. | 1958 |