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Phanerozoic trends in the global diversity of marine invertebrates
Alroy, J.; Aberhan, M.; Bottjer, D.J.; Foote, M.; Fürsich, F.T.; Harries, P.J.; Hendy, A.J.W.; Holland, S.M.; Ivany, L.C.; Kiessling, W.; Kosnik, M.A.; Marshall, C.R.; McGowan, A.J.; Miller, A.I.; Olszewski, T.D.; Patzkowsky, M.E.; Peters, S.E.; Villier, L.; Wagner, P.J.; Bonuso, N.; Borkow, P.S.; Brenneis, B.; Clapham, M.E.; Fall, L.M.; Ferguson, C.A.; Hanson, V.L.; Krug, A.Z.; Layou, K.M.; Leckey, E.H.; Nürnberg, S.; Powers, C.M.; Sessa, J.A.; Simpson, C.; Tomasovych, A.; Visaggi, C.C. (2008). Phanerozoic trends in the global diversity of marine invertebrates. Science (Wash.) 321(5885): 97-100
In: Science (Washington). American Association for the Advancement of Science: New York, N.Y. ISSN 0036-8075, more
Peer reviewed article  

Available in  Authors 

Keyword
    Marine

Authors  Top 
  • Alroy, J.
  • Aberhan, M.
  • Bottjer, D.J.
  • Foote, M.
  • Fürsich, F.T.
  • Harries, P.J.
  • Hendy, A.J.W.
  • Holland, S.M.
  • Ivany, L.C.
  • Kiessling, W.
  • Kosnik, M.A.
  • Marshall, C.R.
  • McGowan, A.J.
  • Miller, A.I.
  • Olszewski, T.D.
  • Patzkowsky, M.E.
  • Peters, S.E.
  • Villier, L.
  • Wagner, P.J.
  • Bonuso, N.
  • Borkow, P.S.
  • Brenneis, B.
  • Clapham, M.E.
  • Fall, L.M.
  • Ferguson, C.A.
  • Hanson, V.L.
  • Krug, A.Z.
  • Layou, K.M.
  • Leckey, E.H.
  • Nürnberg, S.
  • Powers, C.M.
  • Sessa, J.A.
  • Simpson, C.
  • Tomasovych, A.
  • Visaggi, C.C.

Abstract
    It has previously been thought that there was a steep Cretaceous and Cenozoic radiation of marine invertebrates. This pattern can be replicated with a new data set of fossil occurrences representing 3.5 million specimens, but only when older analytical protocols are used. Moreover, analyses that employ sampling standardization and more robust counting methods show a modest rise in diversity with no clear trend after the mid-Cretaceous. Globally, locally, and at both high and low latitudes, diversity was less than twice as high in the Neogene as in the mid-Paleozoic. The ratio of global to local richness has changed little, and a latitudinal diversity gradient was present in the early Paleozoic.

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