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what killed choristoderes?
Does anyone have any ideas what killed off the choristoderes
(champsosaurs) in the Eocene (or Oligocene?)? They certainly weren't
easily killed off, since they made it through the K/T extinction (perhaps
due to a similar aquatic habitat that also protected the surviving crocs).
It seems likely to me that the crocs just crowded them out, either by
competition (perhaps for habitat, such as for nesting sites), or big crocs
acquired a taste for choristodere eggs or young (and just ate them into
Prey extinction or competition for prey seems an unlikely reason,
unless choristoderes were more picky about what they ate. Any other
TGIF, Ken Kinman
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