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The Late Devonian extinction event: evidence for abrupt ecosystem collapse

Published online by Cambridge University Press:  08 February 2016

George R. McGhee Jr.
George R. McGhee Jr.*
Affiliation:
Department of Geological Sciences, Wright Geological Laboratory, Rutgers University, New Brunswick, New Jersey 08903
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Abstract

The Late Devonian extinction event was not geologically “instantaneous,” in that extinctions during the epoch are not concentrated into a single sharp pulse at the end of the Frasnian. Extinction rates are elevated for a period of at least 2 to 4 m.y. during the middle and late phases of the Frasnian, with maximum rates occurring generally 2 m.y. before the terminal Frasnian. Neither was the Late Devonian biotic crisis a “gradual” event. In the analysis of the evolution of ecosystems, it is misleading to consider the pattern of extinction rates alone. Frasnian marine ecosystems flourished during the same time interval characterized by elevated extinction rates because origination rates of new species are higher, per time interval, than corresponding extinction rates. This pattern of relative origination/extinction rates abruptly reversed during the latest Frasnian—precipitating a rapid loss of species diversity. Within limits of current stratigraphic correlation, the ecosystem collapse appears to have occurred simultaneously in such widespread geographic regions as New York State (U.S.A.) and the southern Urals (U.S.S.R.).

In viewing the Late Devonian event from an ecological perspective, the most important question is not “What triggered the elevated extinction rates?”, but rather “What was the inhibiting factor that caused the cessation of new species originations?”

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Articles
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Paleobiology , Volume 14 , Issue 3 , Summer 1988 , pp. 250 - 257
Copyright
Copyright © The Paleontological Society 

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References

Literature Cited

Bayer, U. and McGhee, G. R. Jr. 1986. Cyclic patterns in the Paleozoic and Mesozoic: implications for time scale calibrations. Paleoceanography 1:383–402.CrossRefGoogle Scholar
Becker, R. T. 1986. Ammonoid evolution before, during and after the “Kellwasser Event”—review and preliminary new results. Pp. 181–188. In Walliser, O. H. (ed.), Global Bio-Events: a critical approach. Lecture Notes in Earth Sciences 8. Springer-Verlag; Berlin.CrossRefGoogle Scholar
Chadwick, G. H. 1935. Faunal differentiation in the Upper Devonian. Geological Society of America Bulletin 46:305–342.CrossRefGoogle Scholar
Copper, P. 1984. Cold water oceans and the Frasnian-Famennian extinction crisis. Geological Society of America Abstracts with Program 16:10.Google Scholar
Copper, P. 1986. Frasnian-Famennian mass extinction and cold-water oceans. Geology 14:835–839.2.0.CO;2>CrossRefGoogle Scholar
Dutro, J. T. 1981. Devonian brachiopod biostratigraphy. Pp. 67–82. In Oliver, W. A. Jr. and Klapper, G. (eds.), Devonian biostratigraphy of New York, Part 1. International Union of Geological Sciences Subcommission on Devonian Stratigraphy, Washington, D.C.Google Scholar
Dutro, J. T. 1984. The Frasnian-Famennian extinction event as recorded by Devonian articulate brachiopods in New Mexico. Geological Society of America Abstracts with Program 16:14.Google Scholar
Farsan, N. M. 1986. Frasnian mass extinction—a single catastrophic event or cumulative? Pp. 189–197. In Walliser, O. H. (ed.), Global Bio-Events: a critical approach. Lecture Notes in Earth Sciences 8. Springer-Verlag; Berlin.CrossRefGoogle Scholar
Harland, W. B., Cox, A. V., Llewellyn, P. G., Pickton, C. A. G., Smith, A. G., and Walters, R. 1982. A Geologic Time Scale. Cambridge University Press; New York. 131 pp.Google Scholar
House, M. R. 1967. Fluctuations in the evolution of Palaeozoic invertebrates. Pp. 41–54. In Harland, W. B., Holland, C. H., House, M. R., Hughes, N. F., Reynolds, A. B., Rudwick, M. J. S., Satterthwaite, G. E., Tarlo, L. B. H., and Wiley, E. G., (eds.), The Fossil Record. The Geological Society of London; London.Google Scholar
House, M. R. 1985. Correlation of mid-Palaeozoic ammonoid evolutionary events with global sedimentary perturbations Nature 313:17–22.CrossRefGoogle Scholar
Kalvoda, J. 1986. Upper Frasnian and Lower Tournaisian events and evolution of calcareous foraminifera—close links to climatic changes. Pp. 225–236. In Walliser, O. H. (ed.), Global Bio-Events: a critical approach. Lecture Notes in Earth Sciences 8. Springer-Verlag; Berlin.CrossRefGoogle Scholar
McGhee, G. R. Jr. 1982. The Frasnian-Famennian extinction event: a preliminary analysis of Appalachian marine ecosystems. Geological Society of America Special Paper 190:491–500.CrossRefGoogle Scholar
McGhee, G. R. Jr. 1984. Tempo of the Frasnian-Famennian biotic crisis. Geological Society of America Abstracts with Program 16:49.Google Scholar
McGhee, G. R. Jr. and Sutton, R. G. 1983. Evolution of Late Frasnian (Late Devonian) marine environments in New York and the central Appalachians. Alcheringa 7:9–21.CrossRefGoogle Scholar
McLaren, D. J. 1982. Frasnian-Famennian extinctions. Geological Society of America Special Paper 190:447–484.Google Scholar
McLaren, D. J. 1984. An Upper Devonian event: Frasnian-Famennian extinctions. Geological Society of America Abstracts with Program 16:49.Google Scholar
Newell, N. D. 1967. Revolutions in the history of life. Geological Society of America Special Paper 89:63–91.CrossRefGoogle Scholar
Raup, D. M. and Sepkoski, J. J. Jr. 1982. Mass extinctions in the marine fossil record. Science 215:1501–1503.CrossRefGoogle ScholarPubMed
Sepkoski, J. J. Jr. 1982. A compendium of fossil marine families. Milwaukee Public Museum Contributions in Biology and Geology 51. 124 pp.Google Scholar
Sorauf, J. E. and Pedder, A. E. H. 1984. Rugose corals and the Frasnian-Famennian boundary. Geological Society of America Abstracts with Program 16:64.Google Scholar
Stepanova, G. A., Khalymbadzha, V. G., Chernysheva, N. G., Petrova, L. G., and Postoyalko, M. V. 1985. Boundaries of stages of the Upper Devonian on the South Urals (the eastern slope). Courier Forschungs-Institut Senckenberg 75:123–134.Google Scholar
Sutton, R. G. and McGhee, G. R. Jr. 1985. The evolution of Frasnian marine “community-types” of south-central New York. Geological Society of America Special Paper 201:211–224.CrossRefGoogle Scholar
Van Valen, L. M. 1984. Catastrophes, expectations, and the evidence. Paleobiology 10:121–137.CrossRefGoogle Scholar
Ziegler, W. 1984. Conodonts and the Frasnian/Famennian crisis. Geological Society of America Abstracts with Program 16:73.Google Scholar