Re: paleonet PDF PAPER AVAILABLE

[schudack <schudack@xxxxxxxxxxxxxxxxxx>]

Dear colleague,

I would be very interested to receive a PDF of your paper.

Many thanks and best wishes, Michael Schudack

-------------------------------------------------------------------------------------------

Prof. Dr. Michael Schudack
Fachrichtung Paläontologie, Institut für Geologische Wissenschaften, 
Freie Universität Berlin
Malteserstrasse 74-100, 12249 Berlin, Germany
Tel.: 0049-30-83870274, Fax: 0049-30-83870745
Email: schudack@zedat.fu-berlin.de
http://userpage.fu-berlin.de/~palaeont/schudack.htm



jean guex schrieb:

>
>>>>                    To anyone interested I can send the following 
>>>> paper in PDF form:
>>>
>
>>>> Buoyancy control and growth rates in ammonoids: new preliminary 
>>>> remarks about an old Red Herring.
>>>
>
> Abstract
> Ammonoid preseptal cavity has been known since a long time and often 
> interpreted as a possible tool for buoyancy control by these animals. 
> This possiblity was firmly rejected by Jacobs (1996) who considered 
> the "cartesian diver" hypothesis as a "red herring". The present paper 
> proposes a re-evaluation of this problem. The relationships between 
> the shell geometry, septal spacing and growth rate of the ammonoids 
> are also discussed herein.
>
> Prof Jean Guex
> Institut de Geologie
> BFSH-2
> 1015 Lausanne
> Switzerland
> tel: 41 21  692 4346
> fax: 41 21 692 4305
> NEW E-MAIL: jean.guex@unil.ch
>
>
>
>