Template:Coral fossil record timeline

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[1][2]
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  1. ^ Ben M. Waggoner (2000). David Smith and Allen Collins:Anthozoa: Fossil Record. Anthozoa. UCMP. Retrieved on 2007-04-09.
  2. ^ William A. Oliver, Jr. (2003). Corals: Table 1. Fossil Groups. USGS. Retrieved on 2007-04-09.