Fossiles des faluns miocènes de Bretagne (Bassin du Quiou/Tréfumel).
<p style="text-align: center;"><span style="color: #800000; font-size: 10pt;"><span class="st"><strong> </strong></span></span> </p>
<p style="text-align: center;"><span style="color: #800000; font-size: 10pt;"><span class="st"><strong>Ordre des Crocodylia</strong></span></span>
<span style="color: #800000; font-size: 8pt;"><span class="st"><strong>GMELIN, 1789</strong></span></span> </p>
<p style="text-align: center;"><span style="color: #800000; font-size: 10pt;"><span class="st"><strong>Sous-ordre des Eusuchia</strong></span></span>
<span style="font-size: 10pt;"><span style="color: #800000;"><span class="st"><strong><span style="font-size: 8pt;">HUXLEY,
1875</span></strong></span></span></span> </p>
<p style="text-align: center;"><span style="color: #800000; font-size: 10pt;"><span class="st"><strong>Super-famille des
Alligato</strong></span></span><span style="color: #800000;"><span class="st"><strong><span style="font-size:
10pt;">roidea</span></strong></span></span> <span style="font-size: 10pt;"><span style="color: #800000;"><span class="st"><strong><span
style="font-size: 8pt;">GRAY, 1844</span></strong></span></span></span> </p>
<p style="text-align: center;"><span style="font-size: 10pt;"><span style="color: #800000;"><span class="st"><strong>Famille des Diplocynodontidae <span
style="font-size: 8pt;">(BROCHU, 1999)</span></strong></span></span></span> </p>
<p style="text-align: center;"><span style="font-size: 10pt;"><span style="color: #800000;"><span class="st"><strong>Genre <em>Diplocynodon <span
style="font-size: 8pt;">POMEL, 1847</span></em> <span style="font-size: 8pt;">(genre éteint)</span></strong></span></span></span>
</p>
<p style="text-align: center;"> </p>
<hr />
<p style="text-align: center;"><strong><span style="font-size: 10pt;"> </span></strong> </p>
<p style="text-align: center;"> </p>
<p style="text-align: center;"><strong><span style="font-size: 10pt;"><span style="color: #ff0000;">(</span></span> <span style="color: #ff0000;">En
travaux)</span></strong> </p>
<p style="text-align: center;"> </p>
<p style="text-align: justify;"><span style="font-size: 8pt;"> </span><a class="nopopup" onclick="return !window.open(this);" href="http://idata.over-blog.com/3/94/10/62/Reptiles/Diplocynodon-sp--dent-02-ter.jpg"><img
height="152" width="150" src="http://img.over-blog.com/150x152/3/94/10/62/Reptiles/Diplocynodon-sp--dent-02-ter.jpg"
alt="Diplocynodon-sp--dent-02-ter.jpg" class="GcheTexte" /></a> </p>
<p style="text-align: justify;"> Le genre Diplocynodon est largement représenté en Europe depuis l'Eocène moyen et jusqu'au
Miocène moyen (1). </p>
<p style="text-align: justify;"><br />Le genre disparaît de l'Europe centrale et de la France (Sansan) durant MN6 - (13.2 Ma) (2), mais on le
retrouve sur la péninsule ibérique et dans le sud-est de l'Europe jusqu'au début du Miocène supérieur - MN9 - (de 9,7 à 11,1 Ma).
</p>
<p style="text-align: justify;"><br />Il est donc évident que, durant ces 4 Ma qui sépare MN6 de MN9, <em>Diplocynodon</em> a
migré géographiquement vers le Sud pour des raisons qui sont probablement liées à la brusque chute de
température enregistrée à la fin de la première moitié du Serravalien sous les paléolatitudes qui lui étaient
devenues défavorables(3). </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"><br /><em>(1) Les Diplocynodon (Reptilia, Crocodylia) de l'Orléanien (Miocene inférieur à moyen) de
France.</em><br /><em>Ginsburg, L., Bulot, C., 1997 - N. Jahrb. Geol. Paläontol., Mon.heft. 1999 (6), 321-330.</em> </p>
<p style="text-align: justify;"><br /><em>(2) High-resolution mammal biostratigraphy in the Middle Miocene continental record of Switzerland (Upper Freshwater Molasse, MN4-MN9,
17-10 Ma).</em><br /><em>Kälin, D., Kempf, O., 2002. Internationale Senckenberg Konferenz des Forschungsinstitutes und Naturmuseum Senckenberg, "The Middle
Miocene crisis", EEDEN-meeting, 14-16 November, Frankfurt am Main, 67</em> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"><em>(3)</em> <em><span style="font-family: Advm1046a; font-size: 18pt;" lang="JA"><span style="font-family: Advm1046a; font-size:
18pt;" lang="JA"><span style="font-size: 10pt;">The Miocene Climatic Optimum:</span></span></span></em> <em><span style="font-family: Advm1046a;
font-size: 18pt;" lang="JA"><span style="font-size: 10pt;">evidence from ectothermic vertebrates of Central Europe.</span></span></em> </p>
<p style="text-align: justify;"> <em><span style="font-family: Advm1046a; font-size: 14pt;" lang="JA"><span style="font-size: 10pt;">Madelaine
Böhme</span></span></em> </p>
<p><em><span style="font-family: Advm1046a; font-size: 14pt;" lang="JA"><span style="font-family: Advm1046a; font-size: 14pt;" lang="JA"><span style="font-size:
10pt;"> </span></span></span><span style="font-size: 10pt;">Palaeogeography, Palaeoclimatologie, Palaeoecology 195 (2003) 389-401</span></em>
</p>
<p><em><span style="font-family: Advm1046a; font-size: 14pt;" lang="JA"><span style="font-family: Advm1046a; font-size: 14pt;" lang="JA"><span style="font-family:
Advm1046a; font-size: 14pt;" lang="JA"><span style="font-size: 10pt;"> </span></span></span><span style="font-size: 10pt;">Elsevier
Science</span></span></em> </p>
<p><span style="font-family: Advm1046a; font-size: 14pt;" lang="JA"> </span> </p>
<p> </p>
<p> </p>
<p> </p>
<p><em><span style="font-size: 10pt;"><span style="font-family: Advm1046a; font-size: 8pt;" lang="JA"> </span></span></em> </p>
<p><span style="font-family: Advm1046a; font-size: 8pt;" lang="JA"><span style="font-family: Advm1046a; font-size: 8pt;" lang="JA"> </span></span>
</p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"><span style="font-size: 10pt;"><span style="font-family: Advm1046a; font-size: 8pt;" lang="JA"> </span></span>
</p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p>
<p><span style="font-size: 10pt;"> </span> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p><style type="text/css">
<!--.date {display:none;}-->
</style>
/https%3A%2F%2Fassets.over-blog.com%2Ft%2Fcedistic%2Fcamera.png)
![http://idata.over-blog.com/3/94/10/62/Reptiles/Diplocynodon-sp--dent-02-ter.jpg"><img](http://idata.over-blog.com/3/94/10/62/Reptiles/Diplocynodon-sp--dent-02-ter.jpg"%3E%3Cimg){kind=link}
