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Diplodetus ? (Maastrichtian echinoid)


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Hi,

 

Some weeks ago, I found those spatangoid echinoids in my usual Upper campanian/Lower Maastrichtian hunting zone of SE of Pyrenees:

 

DSC_0410.JPG.5ed48f511f1eae602b0138c1c0656104.JPGDSC_0409.JPG.c7c33d490c51ae053fb364b48dcf8e2c.JPGDSC_0411.JPG.bafc948d5929fb4976d06be00ebb1f88.JPGDSC_0404.JPG.6d6bc9065a953615c9df41440bbf6e69.JPGDSC_0055.thumb.JPG.66e662a7d82eb4c1711bf251195bf286.JPG

 

I think they fit well with Diplodetus brevistella, as shown in http://www.echinologia.com/galeries/micrasteridae/index.html#diplodetus

 

But, I found no other references of Diplodetus in the Pyrenees, and hardly in distant zones of Spain, which makes me doubt (Diplodetus is a genus mostly found in Northern Europe)

 

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Merci beaucoup, caterpillar.

 

In fact, anterior paired ambulacra are longer, but not much. The problem is, maybe,  that they are all too long.

The Echinoid Directory: "(Diplodetus) Differs from Plesiaster only in having shorter petals". So, It could be a Plesiaster.

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