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Re: Greg Paul's new (or newly named) iguanodonts
Gregory Paul just told me that in fact it's the genus
Doliodon of Girard and not Dollodon! a Google Books
Mark Van Tomme
--- Mark Van Tomme <email@example.com> wrote:
> I was going to offer the paper off line :-)
> issues.. I didn't even knew that my files could be
> found! fortunately I discovered in time, thanks!
> There were drafts of papers in preparation uploaded
> there... ouch!
> I did a quick search using Google Books and found a
> certain Dollodon genus of Girard, so its possibly
> occupied by a mammal?, I notified Paul yesterday.
> Mark Van Tomme
> --- "Thomas R. Holtz, Jr." <firstname.lastname@example.org> wrote:
> > A paper I've been waiting for since SVP 2006 is
> > finally in the "Forthcoming
> > Articles" list on Cretaceous Research. Someone has
> > also made the preprint
> > available at:
> > Paul, G.S. A revised taxonomy of the iguanodont
> > dinosaur genera and species,
> > Cretaceous Research
> > (2007), doi: 10.1016/j.cretres.2007.04.009
> > Note that this preprint states: "This is a PDF
> > of an unedited
> > manuscript that has been accepted for publication.
> > As a service to our
> > customers we are providing this early version of
> > manuscript. The
> > manuscript wil undergo copyediting, typesetting,
> > review of the resulting
> > proof before it is published in its final form.
> > Please note that during the
> > production process errors may be discovered which
> > could
> > affect the content, and al legal disclaimers that
> > apply to the journal
> > pertain."
> > So in principle even the names could change before
> > final publication.
> > Here are Greg Paul's new formerly-Iguanodon taxa:
> > Dakotadon lakotaensis n. gen
> > Dollodon bampingi n. gen. et sp.
> > Abstract
> > Criteria for designating dinosaur genera are
> > inconsistent; some very similar
> > species are highly split at the generic level,
> > anatomically disparate
> > species are
> > united at the same rank. Since the mid-1800s the
> > classic genus Iguanodon has
> > become a
> > taxonomic grab-bag containing species spanning
> > of the Early Cretaceous
> > of the
> > northern hemisphere. Recently the genus was
> > radically redesignated when the
> > type was
> > shifted from nondiagnostic English Valanginian
> > to a complete skull and
> > skeleton of
> > the heavily built, semi-quadrupedal I.
> > bernissartensis from much younger
> > Belgian
> > sediments, even though the latter is very
> > in form from the gracile
> > skeletal
> > remains described by Mantell. Currently,
> > remains from Europe are
> > usually
> > assigned to either robust I. bernissartensis or
> > gracile I. atherfieldensis,
> > regardless of
> > location or stage. A stratigraphic analysis is
> > combined with a character
> > census that shows
> > the European iguanodonts are markedly more
> > morphologically divergent than
> > other
> > dinosaur genera, and some appear phylogenetically
> > more derived than others.
> > Two new
> > genera and a new species have been or are named
> > the gracile iguanodonts
> > of the
> > Wealden Supergroup; strongly bipedal
> > atherfieldensis Paul,
> > 2006
> > (holotype BMNH R5764) which possesses a
> > camptosaur-like ilial shape, and the
> > long
> > snouted, long bodied, small hipped, semi-bipedal
> > Dollodon bampingi gen. nov.
> > sp. nov.
> > (holotype IRSNB 1551) which has a shallow ilium.
> > Insufficiently diagnostic
> > I. hoggii is
> > removed from the earlier Camptosaurus. Poorly
> > described I. dawsoni, I.
> > fittoni and I.
> > hollingtoniensis are removed from the much later
> > more derived Iguanodon
> > and
> > considered Ornithopoda incertae sedis pending
> > redescription. The synonymy of
> > I. fittoni
> > and I. hollingtoniensis has not been confirmed. A
> > set of remains of similar
> > age to I. fittoni
> > and I. hollingtoniensis appear to combine a
> > specialized, elongate dentary
> > with massive
> > arms: it either belongs to one of the contemporary
> > taxa, or is a new,
> > unnamed taxon.
> > There has recently been a tendency to consider
> > iguanodonts spatially remote
> > from I.
> > bernissartensis to be members of or very similar
> > the type species, but
> > reanalysis finds
> > that I. orientalis is not a junior synonym of I.
> > bernissartensis and is a
> > nomen dubium, and
> > that basal I. lakotaensis is not a member of
> > Iguanodon and accordingly is
> > assigned the
> > new genus Dakotadon gen. nov. (holotype SDSM
> > Dakotadon is probably
> > basal to
> > Iguanodon and not an iguanodontoid. The higher
> > taxonomy of iguanodontoids is
> > confused due to phylogenetic problems, and
> > inconsistent definitions of the
> > Iguanodontidae (which as currently defined appears
> > to be limited to
> > Iguanodon) and
> > Hadrosauroidea. Mantellisaurus and especially
> > Dollodon, for instance, are
> > probably more
> > derived than Iguanodon: they may be hadrosauroids
> > depending on which
> > phylogenetic
> > definition of the term is preferred.
> > Thomas R. Holtz, Jr.
> > Email: email@example.com Phone: 301-405-4084
> > Office: Centreville 1216
> > Senior Lecturer, Vertebrate Paleontology
> > Dept. of Geology, University of Maryland
> > http://www.geol.umd.edu/~tholtz/
> > Fax: 301-314-9661
> > Faculty Director, Earth, Life & Time Program,
> > College Park Scholars
> > http://www.geol.umd.edu/~jmerck/eltsite/
> > Fax: 301-405-0796
> > Mailing Address: Thomas R. Holtz, Jr.
> > Department of Geology
> > Building 237, Room 1117
> > University of Maryland
> > College Park, MD 20742 USA
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