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



Quoting Tim Williams <twilliams_alpha@hotmail.com>:

David Marjanovic wrote:

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).


_Pseudocetorhinus_ is even older (Triassic). It was an elasmobranch (maybe a synechodontiform).

What about _Mesosaurus_ (Permian)?

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Nicholas J. Pharris
Department of Linguistics
Max Planck Institute for Evolutionary Anthropology
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"Creativity is the sudden cessation of stupidity."
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