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2. Tethyan oceanic currents and climate gradients 300 m.y. ago;Angiolini;Geology,2007
3. Map 6: cenomanian (99.6–93.5 Ma);Barrier,2008
4. Palynofacies analysis and its stratigraphic application;Batten,2005
5. Cretaceous palynostratigraphy of offshore southeastern Canada;Bujak;Geological Survey of Canada's Bulletin,1978