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GEOREF RECORD

First steps on land; arthropod trackways in Cambrian-Ordovician eolian sandstone, southeastern Ontario, Canada

Robert B. MacNaughton, Jennifer M. Cole, Robert W. Dalrymple, Simon J. Braddy, Derek E. G. Briggs and Terrence D. Lukie
First steps on land; arthropod trackways in Cambrian-Ordovician eolian sandstone, southeastern Ontario, Canada
Geology (Boulder) (May 2002) 30 (5): 391-394

Abstract

Basal terrestrial deposits in the Cambrian-Ordovician Nepean Formation (Potsdam Group) near Kingston, Ontario, contain arthropod-produced trackways that extend the record of the first arthropod landfall back by as much as 40 m.y. The presence of large, simple cross-beds and of wind-produced structures, including adhesion ripples and wind-ripple lamination, indicates that the host strata were deposited in an eolian dune field, probably in a marginal-marine setting. The trackways were preserved mainly as undertracks and record the activities of large, amphibious arthropods, possibly euthycarcinoids.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 30
Serial Issue: 5
Title: First steps on land; arthropod trackways in Cambrian-Ordovician eolian sandstone, southeastern Ontario, Canada
Affiliation: Geological Survey of Canada, Calgary, AB, Canada
Pages: 391-394
Published: 200205
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 35
Accession Number: 2002-035452
Categories: StratigraphySedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Geol. Surv. Can., Contrib. No. 2001045
Illustration Description: illus. incl. sect., sketch map
N44°15'00" - N44°30'00", W76°30'00" - W76°15'00"
Secondary Affiliation: Queen's University, Kingston, ON, CAN, CanadaUniversity of Bristol, GBR, United KingdomNexen Canada, Calgary, AB, CAN, Canada
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 200212
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