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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 | Late Toarcian | Portlandian | Celtic Sea | Ainsworth,N.R. et al. Jurassic and Upper Triassic biostratigraphy of the North Celtic Sea and Fastnet Basins. (In:Northwest European Micropalaeontology and Palynology.D.J. Batten and M.C. Keen, editors) | 1989 |
| details | Early Pliocene | Middle Pliocene | Alaska | Ager,T.A. et al. Pliocene terrace gravels of the ancestral Yukon River near Circle Alaska; Palynology, paleobotany, paleoenvironmental reconstruction and region correlation. (In: Tertiary Quaternary Boundaries. T.A. Ager et al, editors) | 1994 |