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RE: Dinosaur diversity triggered by mountain building in Late Cretaceous North America



The closer we get to π, the better! (Then we can all eat, cause I'm hungry...)

Cheers,

  Jaime A. Headden
  The Bite Stuff (site v2)
  http://qilong.wordpress.com/

"Innocent, unbiased observation is a myth." --- P.B. Medawar (1969)


"Ever since man first left his cave and met a stranger with a
different language and a new way of looking at things, the human race
has had a dream: to kill him, so we don't have to learn his language or
his new way of looking at things." --- Zapp Brannigan (Beast With a Billion 
Backs)


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> Date: Fri, 3 Aug 2012 20:59:58 -0400
> From: d_ohmes@yahoo.com
> To: dinosaur@usc.edu
> Subject: Re: Dinosaur diversity triggered by mountain building in Late 
> Cretaceous North America
>
> It's a rounder wheel...
>
> On 8/3/2012 7:45 AM, Clair Ossian wrote:
> > Wh
>
>
> > ile this paper may provide better documentation, this conclusion has been
> > common knowledge for decades. I was convincingly taught this in the 1960's
> > and 1970's. Hmmm...
> >
> > Clair Russell Ossian, Ph.D.
> > Professor Emeritus, Geology
> > Tarrant County College
> > 2805 Raintree Drive
> > Carrollton, TX 75006
> >
> >
> >
> >
> > On 8/2/12 6:39 PM, "Ben Creisler" <bcreisler@gmail.com> wrote:
> >
> >> From: Ben Creisler
> >> bcreisler@gmail.com
> >>
> >> New in PLoS ONE:
> >>
> >> Terry A. Gates, Albert Prieto-Márquez & Lindsay E. Zanno (2012)
> >> Mountain Building Triggered Late Cretaceous North American
> >> Megaherbivore Dinosaur Radiation.
> >> PLoS ONE 7(8): e42135
> >> doi:10.1371/journal.pone.0042135
> >> http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0042135
> >>
> >>
> >> Prior studies of Mesozoic biodiversity document a diversity peak for
> >> dinosaur species in the Campanian stage of the Late Cretaceous, yet
> >> have failed to provide explicit causal mechanisms. We provide evidence
> >> that a marked increase in North American dinosaur biodiversity can be
> >> attributed to dynamic orogenic episodes within the Western Interior
> >> Basin (WIB). Detailed fossil occurrences document an association
> >> between the shift from Sevier-style, latitudinally arrayed basins to
> >> smaller Laramide-style, longitudinally arrayed basins and a well
> >> substantiated decreased geographic range/increased taxonomic diversity
> >> of megaherbivorous dinosaur species. Dispersal-vicariance analysis
> >> demonstrates that the nearly identical biogeographic histories of the
> >> megaherbivorous dinosaur clades Ceratopsidae and Hadrosauridae are
> >> attributable to rapid diversification events within restricted basins
> >> and that isolation events are contemporaneous with known tectonic
> >> activity in the region. SymmeTREE analysis indicates that
> >> megaherbivorous dinosaur clades exhibited significant variation in
> >> diversification rates throughout the Late Cretaceous. Phylogenetic
> >> divergence estimates of fossil clades offer a new lower boundary on
> >> Laramide surficial deformation that precedes estimates based on
> >> sedimentological data alone.
> >
> >
>