Re: Bernissart Igs (was: Iguanodontidae and Theropod Boredom)

[Justin Tweet <thescelosaurus@juno.com>]

On Mon, 2 Jul 2001 23:23:39 +0200 "aspidel" <aspidel@infonie.be> writes:
>
> ptnorton <ptnorton@msn.com> wrote:
> To: <aspidel@infonie.be>; The Dinosaur Mailing List
> <dinosaur@usc.edu>
>
> > David Norman referred _Iguanodon mantelli_ [Von Meyer 1832] to _I.
> > atherfieldensis_ [Hooley, 1925] in:
> >
> > Norman, David B. (1986), On the anatomy of Iguanodon
> atherfieldensis
> > (Ornithischia: Ornithopoda). Bull. Inst. r. Sci. nat. Belg.:
> Sciences de
> la
> > Terre. 56, 281-372.
> >
> > He also says in that article that _I. mantelli_ is an objective
> junior
> > synonym of the type species of the genus, _I. anglicus_ [Holl,
> 1829].
>
> So, if I understand well, _I. atherfieldensis_ is a junior _I.
anglicus_ for
> D. Norman.  And, as Jaime wrote, _I. atherfieldensis_ , and then _I.
anglicus_,
> may be a regional variety of _I. bernissartensis_...
> So, they are 2 regional varieties we got together in the same place
(the
> distribution era of one variety meet the other variety's one).

Something doesn't sound quite right taxonomically here.  I though, first
of all, that *I. bernissartensis* is now the type species of *Iguanodon*,
with *I. anglicus* reduced to a nomen dubium.  Also, did Norman refer *I.
mantelli* to both *I. anglicus* and *I. atherfieldensis*, or Belgian *I.
mantelli* to one and the original English *I. mantelli* to the other?  In
addition, does the differentiation *I. anglicus*\*I. atherfieldensis*
matter anyway, since *I. anglicus* seems no longer to be valid (and thus
should not have additional material referred to it)?  Am I just barking
up the wrong tree?

(Passing Trivial Question: While on the subject of ornithopods, I'd like
to know if someone here has seen the *Drinker* material.  Bakker has
claimed the adults only got to 300 mm in length; is this real?)

Taxonomically Confused,
*Thescelosaurus*

> I'm not a specialist, I try to get clear ideas. Please tell me if
> I'm wrong.
>
> Thanks in advance,
>                                Luc J. "Aspidel" BAILLY.
>
> p.s. I'll probably go to Brussels to study the question, after my
> _Paralititan_ artistic project.>
>

---------------------------------------------------------------
Justin Tweet, *Thescelosaurus*
See "Thescelosaurus!": http://personal2.stthomas.edu/jstweet/index.htm

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