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RE: Extinction scenarios
At 10:32 PM 8/22/98 -0500, Augustus T. White wrote:
>2) I know even less about paleobotany than paleoecology. However, I think
>rain forests in particular are a more recent development. The Cretaceous
>landscape was, as I understand it, considerably more open than even
>conventional forest land today. Working backwards from dinos, this makes
>sense. Bunches of dinosaurs were bipedal, and the bipedal habit makes the
>most sense in open, dry biomes.
Wouldn't this argument really be circular? Arid landscapes provide a
better environment for producing fossils, so we observe it better. This
doesn't mean that wet enviroments didn't exist. Is there any information
indicating the entire world was similar?