holyschist: Image of a medieval crocodile from Herodotus, eating a person, with the caption "om nom nom" (Default)
[personal profile] holyschist posting in [community profile] science
The current issue of Palaeontologica Electronica published a paper on New Geochronologic and Stratigraphic Evidence Confirms the Paleocene Age of the Dinosaur-Bearing Ojo Alamo Sandstone and Animas Formation in the San Juan Basin, New Mexico and Colorado.

This isn't a new discovery, but the careful analysis of the magnetostratigraphy, palynology, and sedimentology is, and it strengthens the case for some dinosaurs (relatively) briefly surviving the Cretaceous-Tertiary extinction in some areas.

I haven't read the paper in excruciating detail yet (end of the semester, ack!), but I will post some more thoughts on it later. For now, if there are any other paleo geeks here, I'd love to hear your thoughts!

Date: 2009-05-01 12:13 pm (UTC)
hkellick: (Knowledge)
From: [personal profile] hkellick
I guess it makes sense that some dinosaurs may have made it past the C-T extinction. Something small that could find a niche living someplace. I mean, we know other species survived, such as birds.

But this begs the question.. what happened to them? Did they evolve into birds as well? Or did they just go extinct as the world changed around them? Can't say I see a Dinosaur doing so well during an Ice Age

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