Skip to Main Content
Book Chapter

Biota and palaeoenvironment of a high middle-latitude Late Triassic peat-forming ecosystem from Hopen, Svalbard archipelago

By
S. McLoughlin
S. McLoughlin
Department of Palaeobiology, Swedish Museum of Natural History, Box 50007, 104 05 Stockholm, Sweden
Search for other works by this author on:
C. Strullu-Derrien
C. Strullu-Derrien
Department of Earth Sciences, The Natural History Museum, Cromwell Road, London SW7 5BD, UKUniversité d’Angers, Laboratoire Bio-indicateurs Actuels et Fossiles (BIAF) – CNRS UMR 6112 LPGN, Faculté des Sciences, 2 boulevard Lavoisier, 49045 Angers Cedex, France
Search for other works by this author on:
Published:
January 01, 2016

Abstract

A siliceous permineralized peat block recovered from Hopen in the Svalbard archipelago hosts a low-diversity Late Triassic flora dominated by autochthonous roots and stems of bennettitaleans and lycophytes, and parautochthonous leaves, sporangia, spores and pollen from a small range of pteridophytes and gymnosperms. Some parenchymatous bennettitalean root cells show interactions with chytrid fungi and bacteria; the remains of other fungi and fungi-like organisms are dispersed within the peat’s detrital matrix. Cavities excavated through some roots and compacted detritus contain abundant coprolites probably derived from sapro-xylophagous oribatid mites, although no body fossils have yet been identified. Sparse larger coprolites containing leaf fragments attest to the presence of invertebrate folivores in the ancient ecosystem. The low-diversity flora, relatively few trophic levels and simple nutritional web, together with sedimentological aspects of the host formation and the peat structure, collectively favour accumulation of the organic mass as a fibric (root-dominated) peat within a temperate (high middle-latitude), well-aerated mire.

You do not currently have access to this article.
Don't already have an account? Register

Figures & Tables

Contents

Geological Society, London, Special Publications

Mesozoic Biotas of Scandinavia and its Arctic Territories

B. P. Kear
B. P. Kear
Uppsala University, Sweden
Search for other works by this author on:
J. Lindgren
J. Lindgren
Lund University, Sweden
Search for other works by this author on:
J. H. Hurum
J. H. Hurum
University of Oslo, Norway
Search for other works by this author on:
J. Milàn
J. Milàn
Geomuseum Faxe, Denmark
Search for other works by this author on:
V. Vajda
V. Vajda
Swedish Museum of Natural History, Sweden
Search for other works by this author on:
Geological Society of London
Volume
434
ISBN electronic:
9781862391581
Publication date:
January 01, 2016

References

Related

A comprehensive resource of eBooks for researchers in the Earth Sciences

Related Articles
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal