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RE: Burrowing/hibernating mammals have lower extinction risk

On Tue, 3 Feb 2009, Thomas R. Holtz, Jr. wrote:
From: owner-DINOSAUR@usc.edu [mailto:owner-DINOSAUR@usc.edu]
On Behalf Of GUY LEAHY

I wonder if this could have been a factor at the K/Pg boundary?



Robertson et al. (2004) highlight a burrowing habit as a likely survival
trait in the first hours of the Cenozoic, while Smith & Botha (2005) suggest
burrowing therapsids (as organisms adapted to dealing with periods of
dysoxia and hypercapnia) may have had a selective advantage over
non-burrowers at the P/Tr event.

So - any burrowing dinosaurs (excluding birds)?