Dinosaur-dispersed cycads

Harold Koopowitz hkoopowi@uci.edu
Fri, 25 Nov 2011 06:35:03 PST

The mammals have been around a long long time, probably the whole 
time that there were dinosaurs. No reason why some dinosaurs could 
not have dispersed some cycads but I have never come across this 
being addressed. It would have to be a big bird to disperse cycad 
seed and most of the giant birds are after 65 mya.


At 05:54 PM 11/24/2011, you wrote:
>Does anyone know of evidence that cycads were dispersed by 
>dinosaurs? I suppose it could be true, but some birds and small 
>mammals co-existed with the later dinosaurs, and could have 
>dispersed cycads prior to 65 Mya. If there really was a drop in 
>cycad diversity when the dinosaurs became extinct, as the article 
>says, this could very well have been an effect of the same 
>environmental changes (meteors, etc) that wiped out the dinosaurs.
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