Great Ordovician Biodiversification Event

The Great Ordovician Biodiversification Event (GOBE), was an evolutionary radiation of animal life throughout[1] the Ordovician period, 40 million years after the Cambrian explosion,[2] whereby the distinctive Cambrian fauna fizzled out to be replaced with a Paleozoic fauna rich in suspension feeder and pelagic animals.[3]

It followed a series of Cambrian–Ordovician extinction events, and the resulting fauna went on to dominate the Palaeozoic relatively unchanged.[4] Marine diversity increased to levels typical of the Palaeozoic,[5] and morphological disparity was similar to today's.[6] The diversity increase was neither global nor instantaneous; it happened at different times in different places.[4] Consequently, there is unlikely to be a simple or straightforward explanation for the event; the interplay of many geological and ecological factors likely produced the diversification.[1]

  1. ^ a b Cite error: The named reference Munnecke2010 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Servais2008 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Servais2010 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Droser2003 was invoked but never defined (see the help page).
  5. ^ Marshall, C. R. (2006). "Explaining the Cambrian "explosion" of Animals". Annual Review of Earth and Planetary Sciences. 34: 355–384. Bibcode:2006AREPS..34..355M. doi:10.1146/annurev.earth.33.031504.103001.
  6. ^ Bambach, R. K.; Bush, A. M.; Erwin, D. H. (2007). "Autecology and the Filling of Ecospace: Key Metazoan Radiations". Palaeontology. 50 (1): 1–22. Bibcode:2007Palgy..50....1B. doi:10.1111/j.1475-4983.2006.00611.x.

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