Bioerosion of Lower Ordovician Hardgrounds in Southern Scandinavia and Western North America.

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RECERCAT Home > Universitat de Barcelona > Dinàmica de la Terra i l'Oceà > Articles publicats en revistes (Dinàmica de la Terra i l'Oceà) > View document

To access the full text documents, please follow this link: http://hdl.handle.net/2445/69313

dc.contributor	Universitat de Barcelona
dc.contributor.author	Ekdale, Allan A. (Allan Anton), 1946-
dc.contributor.author	Benner, J.S.
dc.contributor.author	Bromley, R. G. (Richard Granville)
dc.contributor.author	Gibert Atienza, Jordi Maria de
dc.date	2016-02-08T16:22:45Z
dc.date	2016-02-08T16:22:45Z
dc.date	2002
dc.date	2016-02-08T16:22:45Z
dc.identifier.citation	0567-7505
dc.identifier.citation	506264
dc.identifier.uri	http://hdl.handle.net/2445/69313
dc.format	5 p.
dc.format	application/pdf
dc.language.iso	eng
dc.publisher	Universitat de Barcelona (UB). Institut de Ciències de la Terra Jaume Almera (ICTJA)
dc.relation	Reproducció del document publicat a: http://www.raco.cat/index.php/ActaGeologica/article/view/75727
dc.relation	Acta Geologica Hispanica, 2002, vol. 37, num. 1, p. 9-13
dc.rights	(c) Ekdale, Allan A. (Allan Anton), 1946- et al., 2002
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Invertebrats fòssils
dc.subject	Fossil invertebrates
dc.title	Bioerosion of Lower Ordovician Hardgrounds in Southern Scandinavia and Western North America.
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.description.abstract	Trace fossils produced by macroboring invertebrates can be found in carbonate hardgrounds of early Ordovician age in southern Sweden, southern Norway and western Utah (U.S.A.). The bioeroded rocks are highly fossiliferous, thinly bedded, shallow-marine li-mestones. The macroborings in each of the three localities are vase-shaped cavities with diameters and lengths ranging from one to a few centimeters. At least some of the Swedish specimens apparently belong to the ichnogenus Gastrochaenolites LEYMERIE. These bioerosion trace fossils appear to be the oldest macroborings in carbonate hardgrounds, and they indicate that the macroboring niche was firmly established in shallow-marine carbonate shelf environments at least by Arenig time in the Ordovician Period.

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