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Geological Society, London, Special Publications; 1996; v. 101; p. 205-218;
DOI: 10.1144/GSL.SP.1996.101.01.13
© 1996 Geological Society of London

Regional Studies: Stratigraphy, Tectonics and Volcanism

Mammalian biostratigraphy across the Paleocene-Eocene boundary in the Paris, London and Belgian basins

J. J. Hooker

Department of Palaeontology, Natural History Museum, Cromwell Road, London SW7 5BD, UK

Problems of resolution and poor superpositional evidence in mammalian biostratigraphy through Paleocene-Eocene boundary strata in NW Europe are solved by applying parsimony analysis to taxa shared between localities. On this basis, five biozones are established in the area for the interval formerly delineated by mammalian biostratigraphers as MP7-MP9. Integration with other biostratigraphies (dinocyst, calcareous nannoplankton, charophytes) aids correlation between the London, Belgian and Paris Basins, and supports the earlier idea of diachronism of the ‘argile à lignites’ facies. The advent of ‘Sparnacian’ mammal faunas in Europe may coincide with a carbon isotope excursion recently recognized in the Paris Basin. This would support recent views on essential synchronism of the beginnings of both the North American Wasatchian and European ‘Sparnacian’ land mammal ages.