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The late Ordovician Soom Shale Lagerstatte; an extraordinary post-glacial fossil and sedimentary record

Sarah E. Gabbott, Claire Browning, Johannes N. Theron and Rowan J. Whittle
The late Ordovician Soom Shale Lagerstatte; an extraordinary post-glacial fossil and sedimentary record
Journal of the Geological Society of London (October 2016) 174 (1): 1-9

Abstract

Fossils of the Late Ordovician Soom Shale Lagerstatte are characterized by exceptional preservation of their soft tissues in clay minerals. The low-diversity community lived in an unusual cold-water setting, dominated by anoxic bottom waters, in the immediate aftermath of the Hirnantian glaciation. Giant conodonts represented by complete tooth sets, and one with trunk musculature and liver preserved, unarmoured jawless fish, lobopods and enigmatic taxa are some of the more important fossils. Furthermore, this Lagerstatte also preserves biomineralized Ordovician taxa such as brachiopods, orthoconic nautiloids and trilobites. It is important in capturing the only known examples of many taxa, extending temporal ranges of others and providing a unique glimpse of a post-glacial refugium, at a time when other Lagerstatten are unknown.


ISSN: 0016-7649
EISSN: 2041-479X
Coden: JGSLAS
Serial Title: Journal of the Geological Society of London
Serial Volume: 174
Serial Issue: 1
Title: The late Ordovician Soom Shale Lagerstatte; an extraordinary post-glacial fossil and sedimentary record
Affiliation: University of Leicester, Department of Geology, Leicester, United Kingdom
Pages: 1-9
Published: 20161020
Text Language: English
Publisher: Geological Society of London, London, United Kingdom
References: 75
Accession Number: 2016-096755
Categories: General paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. strat. col., geol. sketch map
S34°00'00" - S32°00'00", E19°00'00" - E20°00'00"
Secondary Affiliation: Council for Geoscience, ZAF, South AfricaUniversity of Stellenbosch, ZAF, South AfricaBritish Antarctic Survey, GBR, United Kingdom
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 201647
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