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Maastrichtian nyctosaur

April 30, 2012

If you are familiar with this blog, you can see I’ve bashed every single notion that pterosaurs were in decline.

As it turns out, I forgot a specific pterosaur fossil. As it turns out, a Nyctosaurid humerus from Mexico was found dating to roughly 70 million years ago.

This confirms my suspicions: nyctosaurs have existed until much latter, but were not preserved by the fossil reccord.

Therefore, there’s even more reasons to suspect that Maastrichtian pterosaur diversity was much higher than we give it credit for.

4 Comments leave one →
  1. Random Guy permalink
    May 1, 2012 4:50 am

    I thought nyctosaurs were already known from the Maastrichtian?

    • May 1, 2012 8:54 am

      There was some controversy. Until the discovery of this fossil, the main evidence for Maastrichtian nyctosaurs was “Nyctosaurus” lamegoi from Brazil, which is just a humerus that could belong to any pterosaur.

      This mexican fossil is incomplete, but given it’s location, it seems to be likely that it is a nyctosaur.

  2. GigoXXIII permalink
    May 2, 2012 11:27 am

    If the KT had gone diffrently (been less devistating or not happened at all) would the Pterosaurs have survived the Eocene Thermal Maxim ?

    • May 2, 2012 3:02 pm

      Nyctosaurs would probably have become extinct (though our pseudodontorn birds didn’t, so maybe they could survive), but I don’t see why azhdarchids and chaoyangopterids wouldn’t survive, since they survived the previous one.

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