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:::There is evidence of the meteor impact too, in the form of a rock layer with an relatively massive amount of iridium, the enormous crater in Mexico, and the fact that there isn't a single true dinosaur fossil found above this rock layer. [[User:FCapra|FCapra]] 19:07, 20 September 2011 (EDT)
 
:::There is evidence of the meteor impact too, in the form of a rock layer with an relatively massive amount of iridium, the enormous crater in Mexico, and the fact that there isn't a single true dinosaur fossil found above this rock layer. [[User:FCapra|FCapra]] 19:07, 20 September 2011 (EDT)
 
::::But I though birds were supposed truly to be dinosaurs? --[[User:DrDean|DrDean]] 19:24, 20 September 2011 (EDT)
 
::::But I though birds were supposed truly to be dinosaurs? --[[User:DrDean|DrDean]] 19:24, 20 September 2011 (EDT)
 +
:::::Birds are the only exception, although whether they are true dinosaurs is a hotly debated topic of taxonomy.
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