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dc.contributor.authorCaswell, Bryony A
dc.contributor.authorCoe, Angela L
dc.date.accessioned2018-10-31T01:37:34Z
dc.date.available2018-10-31T01:37:34Z
dc.date.issued2014
dc.identifier.issn0016-7878
dc.identifier.doi10.1016/j.pgeola.2014.06.001
dc.identifier.urihttp://hdl.handle.net/10072/142250
dc.description.abstractExtreme environmental change during the Toarcian Oceanic Anoxic Event had widespread impacts on marine biota. This study provides new evidence, from the Yorkshire coast sections, UK, that the event was associated with periods of elevated fish and ammonite mortality. Using a synthesis of pelagic macrofaunal changes, benthic macrofaunal data and geochemical proxies we show that there are stratigraphical correlations between: (1) pelagic macrofaunal ranges and abundance, (2) benthic macrofaunal abundance, and (3) geochemical proxies that indicate deoxygenation. We identify eight stratigraphical intervals of differing character. Results suggest two major phases of relatively persistent deoxygenation with photic zone euxinia. The cyclostratigraphic timescale indicates that each phase lasted at least tens of thousands of years. Belemnite migration during the event probably resulted from increased seawater temperatures and low food supply similar to that observed for many marine taxa, including squid, within the present-day oceans.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofpagefrom383
dc.relation.ispartofpageto391
dc.relation.ispartofissue4
dc.relation.ispartofjournalProceedings of the Geologists' Association
dc.relation.ispartofvolume125
dc.subject.fieldofresearchGeology
dc.subject.fieldofresearchPalaeoecology
dc.subject.fieldofresearchArchaeology
dc.subject.fieldofresearchcode3705
dc.subject.fieldofresearchcode310306
dc.subject.fieldofresearchcode4301
dc.titleThe impact of anoxia on pelagic macrofauna during the Toarcian Oceanic Anoxic Event (Early Jurassic)
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorCaswell, Bryony A.


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