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Environmental and Substrate Control on Paleozoic Bioerosion in Corals and Stromatoporoids, Anticosti Island, Eastern Canada

2004; Society for Sedimentary Geology; Volume: 19; Issue: 3 Linguagem: Inglês

10.1669/0883-1351(2004)019 2.0.co;2

1938-5323

Leif Tapanila, Paul Copper, Evan Edinger,

Marine Biology and Ecology Research

Other| June 01, 2004 Environmental and Substrate Control on Paleozoic Bioerosion in Corals and Stromatoporoids, Anticosti Island, Eastern Canada LEIF TAPANILA; LEIF TAPANILA 1Department of Earth Sciences, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada,ltapanila@mines.utah.edu *Current Address: Department of Geology and Geophysics, University of Utah, 135 South, 1460 East, Room 719, Salt Lake City, UT, 84112-0111. Search for other works by this author on: GSW Google Scholar PAUL COPPER; PAUL COPPER 1Department of Earth Sciences, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada,ltapanila@mines.utah.edu Search for other works by this author on: GSW Google Scholar EVAN EDINGER EVAN EDINGER 1Department of Earth Sciences, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada,ltapanila@mines.utah.edu **Current address: Department of Geography, Memorial University of Newfoundland, St. John's, Newfoundland, A1B 3X9, Canada. Search for other works by this author on: GSW Google Scholar Author and Article Information LEIF TAPANILA *Current Address: Department of Geology and Geophysics, University of Utah, 135 South, 1460 East, Room 719, Salt Lake City, UT, 84112-0111. 1Department of Earth Sciences, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada,ltapanila@mines.utah.edu PAUL COPPER 1Department of Earth Sciences, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada,ltapanila@mines.utah.edu EVAN EDINGER **Current address: Department of Geography, Memorial University of Newfoundland, St. John's, Newfoundland, A1B 3X9, Canada. 1Department of Earth Sciences, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada,ltapanila@mines.utah.edu Publisher: SEPM Society for Sedimentary Geology Accepted: 15 Dec 2003 First Online: 03 Mar 2017 Online ISSN: 1938-5323 Print ISSN: 0883-1351 Society for Sedimentary Geology PALAIOS (2004) 19 (3): 292–306. https://doi.org/10.1669/0883-1351(2004)019 2.0.CO;2 Article history Accepted: 15 Dec 2003 First Online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation LEIF TAPANILA, PAUL COPPER, EVAN EDINGER; Environmental and Substrate Control on Paleozoic Bioerosion in Corals and Stromatoporoids, Anticosti Island, Eastern Canada. PALAIOS 2004;; 19 (3): 292–306. doi: https://doi.org/10.1669/0883-1351(2004)019 2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyPALAIOS Search Advanced Search Abstract Bioerosion was a common process affecting corals and stromatoporoids in reef and off-reef facies on the carbonate ramp that spanned the Ordovician–Silurian boundary on Anticosti Island. The probable worm boring Trypanites was the dominant macroboring, penetrating more than 40% of 2,500 massive tabulate corals and stromatoporoids examined, occasionally in dense concentrations. The frequency of macroboring was influenced by conditions at the facies level reflected by changes in grain size, water depth, storm reworking of sediments, and the nature of the skeletal mass bored. These factors regulated exposure time of the host-substrate surface to the watermass and thus influenced bioerosion. Bored specimens are most common in muddy off-reef facies, moderate in sandy off-reef facies, and less common in reefs. In off-reef facies, storm-enhanced deposition and reworking of sediments were most important in the burial of eligible host substrates. In reefs, the high competition for space by encrusting epizoans, combined with sedimentation, limited macroborers that preferred to excavate dead skeletal substrates. Skeletal density was the most important property of the host substrate in controlling boring frequency. Macroborers favored a dense host skeleton likely for its enhanced mechanical strength and adaptability for unlined borings, despite requiring greater energy for excavation. High-relief host skeletons were bored more frequently than tabular forms, since their greater capacity to shed sediment would have resulted in more prolonged exposure above the seafloor. The probable bivalve boring Petroxestes pera is rare. Temporal changes in boring frequency appear to reflect local shifts in facies and relative sea level. Mass-extinction events near the O/S boundary, which eliminated some host corals and stromatoporoids, had no apparent effect on boring frequency. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.