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A sporomorph ecogroup model for the Northwest European Jurassic - Lower Cretaceousi: concepts and framework

Published online by Cambridge University Press:  01 April 2016

O.A. Abbink ,
J.H.A. Van Konijnenburg-Van Cittert  and
H. Visscher
O.A. Abbink*
Affiliation:
TNO-NITG, P.O. Box 80015, NL-3508TA Utrecht, the Netherlands:, o.abbink@nitg.tno.nl
J.H.A. Van Konijnenburg-Van Cittert
Affiliation:
Laboratory of Palaeobotany and Palynology, Utrecht University, Budapestlaan 4, NL-3584 CD Utrecht, the Netherlands:j.h.a.vankonijnenburg@bio.uu.nl, h.visscher@bio.uu.nl National Museum of Naturl History ‘Naturalis’, P.O. Box 9517, 2300 RA Leiden, the Netherlands:konijnenburg@naturalis.nl
H. Visscher
Affiliation:
TNO-NITG, P.O. Box 80015, NL-3508TA Utrecht, the Netherlands:, o.abbink@nitg.tno.nl Laboratory of Palaeobotany and Palynology, Utrecht University, Budapestlaan 4, NL-3584 CD Utrecht, the Netherlands:j.h.a.vankonijnenburg@bio.uu.nl, h.visscher@bio.uu.nl
*
*Corresponding author.
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Abstract

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Based on recent vegetation distribution and an integration of macropalaeobotanical and palynological information, a palaeocommunity model is explored that may permit detailed interpretations of quantitative sporomorph distribution patterns in the Jurassic and Early Cretaceous of NW-Europe in terms of changes in palaeoenvironment (sea-level, climate). The conceptual model is based on the recognition of Sporomorph Ecogroups (SEGs) that reflect broad co-existing plant communities, viz. upland, lowland, river, pioneer, coastal, and tidally-influenced SEGs. In successive palynological assemblages, shifts in the relative abundance of SEGs are thought to be indicators of sea-level changes. Climatic changes may be recognised through significant shifts within the quantitative composition of individual SEGs.

Keywords

palynologypalaeobotanyLate Jurassicpalaeo-ecologypalaeoclimatesea-level
Type
Research Article
Information
Netherlands Journal of Geosciences , Volume 83 , Issue 1 , March 2004 , pp. 17 - 31
Copyright
Copyright © Stichting Netherlands Journal of Geosciences 2004

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