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Cited by 326

The DOI matches its Crossref record; 73 of the 73 references it cites were found in a registry or an index.

End Ordovician extinctions: A coincidence of causes

Open access
Harper, David A.T., Hammarlund, Emma U., Rasmussen, Christian M.Ø.·2014·Gondwana Research
DOI 10.1016/j.gr.2012.12.021
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Abstract

The end Ordovician (Hirnantian) extinction was the first of the five big Phanerozoic extinction events, and the first that involved metazoan-based communities. It comprised two discrete pulses, both linked in different ways to an intense but short-lived glaciation at the South Pole. The first, occurring at, or just below, the Normalograptus extraordinarius graptolite Biozone, mainly affected nektonic and planktonic species together with those living on the shallow shelf and in deeper water whereas the second, within the N. persculptus graptolite Biozone, was less focused, eradicating faunas across a range of water depths. In all about 85% of marine species were removed. Proposed kill mechanisms for the first phase have included glacially-induced cooling, falling sea level and chemical recycling in the oceans, but a general consensus is lacking. The second phase is more clearly linked to near-global anoxia associated with a marked transgression during the Late Hirnantian. Most recently, however, new drivers for the extinctions have been proposed, including widespread euxinia together with habitat destruction caused by plate tectonic movements, suggesting that the end Ordovician mass extinctions were a product of the coincidence of a number of contributing factors. Moreover, when the deteriorating climate intensified, causing widespread glaciation, a tipping point was reached resulting in catastrophe.

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Citations

Cites

Research works printed but not linked: 11

  1. Brenchley, 1988, Environmental changes close to the Ordovician boundary, Bulletin of the British Museum of Natural History (Geology), 43, 377
  2. Briggs, 1988, Extinction and the fossil record of the arthropods, vol. 34, 171
  3. Copper, 2012, Early Silurian (Aeronian) East Point coral patch reefs of Anticosti Island, Eastern Canada: first reef recovery from the Ordovician/Silurian Mass Extinction in Eastern Laurentia, Geosciences, 2, 64, 10.3390/geosciences2020064 · doi:10.3390/geosciences2020064
  4. Harper, 1981, The stratigraphy and faunas of the Upper Ordovician High Mains Formation of the Girvan district, Scottish Journal of Geology, 17, 247, 10.1144/sjg17040247 · doi:10.1144/sjg17040247
  5. Owen, 1986, The uppermost Ordovician (Hirnantian) trilobites of Girvan, SW Scotland with a review of coeval trilobite faunas, Transactions of the Royal Society of Edinburgh: Earth Sciences, 77, 231, 10.1017/S0263593300010865 · doi:10.1017/s0263593300010865
  6. Owen, 2008, A route to recovery: the early Silurian shallow-water shelly fauna in the northern Oslo basin, Lethaia, 41, 173, 10.1111/j.1502-3931.2008.00109.x · doi:10.1111/j.1502-3931.2008.00109.x
  7. Rasmussen, C.M.Ø., 2009. A palaeoecological and biogeographical investigation of the Ordovician–Silurian boundary based on brachiopods. Ph.D. Thesis, University of Copenhagen. 82 pp., 8 pls.
  8. Rong, 1979, The Hirnantia fauna of China with comments on the Ordovician–Silurian boundary, Journal of Stratigraphy, 3, 1
  9. Sheehan, 1973, Brachiopods from the Jerrestad Mudstone (Early Ashgillian Ordovician) from a boring in southern Sweden, Geologica et Palaeontologica, 7, 59
  10. Stanley, 2010, Thermal barriers and the fate of perched faunas, Geology, 38, 31, 10.1130/G30295.1 · doi:10.1130/g30295.1
  11. Temple, 1965, Upper Ordovician brachiopods from Poland and Britain, Acta Palaeontologica Polonica, 10, 379

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Metadata

Authors
Harper, D. A. T., Hammarlund, E. U., & Rasmussen, C. M. Ø.
Venue
Gondwana Research
Publisher
Elsevier BV
Published
2014-05
Volume
25
Issue
4
Pages
1294-1307
ISSN
1342-937X (ISSN-L)
DOI
10.1016/j.gr.2012.12.021
OpenAlex
W2091472881
Cited by
326
References
73
FWCI
10.26
Type
journal article
Language
en
Open access
green
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Funders
  • Carlsberg Foundation
  • Danish Council for Independent Research
  • Danish National Research Foundation

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