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GEOREF RECORD

Trypanites-type ichnofacies at the Bay of Fundy, Nova Scotia, Canada

Carolyn M. Furlong, Murray K. Gingras and John-Paul Zonneveld
Trypanites-type ichnofacies at the Bay of Fundy, Nova Scotia, Canada
Palaios (April 2015) 30 (4): 258-271

Abstract

The Trypanites ichnofacies is frequently associated with low biotic and trace diversity, and erosional or nondepositional conditions. However, analysis of an extensively exposed, modern, siliciclastic, intertidal hardground community near Thomas Cove, located at Economy Point, Nova Scotia, within the Bay of Fundy, reveals a diverse community of boring, encrusting, and squatting/clinging organisms and a diverse assemblage of sedimentary structures. A high diversity of biota and low diversity, but high abundance, of borings is present along this modern Trypanites-type ichnofacies. Species richness reaches 37 organisms within the study area, and two boring bivalves (Petricola pholadiformis and Zirfaea pilsbryi), which produce Gastrochaenolites-like traces, are present. Eleven distinct depositional subenvironments are identified and are categorized as being either Trypanites-bearing or Trypanites-barren. Analysis of this modern analogue suggests that ancient Trypanites ichnofacies may have been more dynamic and diverse environments than is sometimes interpreted from the rock record.


ISSN: 0883-1351
Serial Title: Palaios
Serial Volume: 30
Serial Issue: 4
Title: Trypanites-type ichnofacies at the Bay of Fundy, Nova Scotia, Canada
Affiliation: University of Alberta, Department of Earth and Atmospheric Sciences, Edmonton, AB, Canada
Pages: 258-271
Published: 201504
Text Language: English
Publisher: Society for Sedimentary Geology, Tulsa, OK, United States
References: 49
Accession Number: 2015-052229
Categories: Invertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sect., 2 tables, geol. sketch maps
N45°19'60" - N45°19'60", W63°52'60" - W63°52'60"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by SEPM (Society for Sedimentary Geology), Tulsa, OK, United States
Update Code: 201524
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