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RE: On the subject of mysterious absences...The Answer



Should also add that tooth-sieving pterosaurs go back to the Jurassic
(Ctenochasma, Gnathosaurus etc).

-----Original Message-----
From: owner-dinosaur@usc.edu [mailto:owner-dinosaur@usc.edu] On Behalf
Of David Marjanovic
Sent: Monday, 21 April 2008 6:36 AM
To: DML
Subject: Re: On the subject of mysterious absences...The Answer


>I wonder if Pterodaustro is the first known filter feeder to have 
>evolved?

Among reasonably big vertebrates, you mean? *Leedsichthys* is older
(Middle 
Jurassic and later).
 

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