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Does anybody know where these gastropods might come from or at least to which geological stage they belong?


Ludwigia

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On a recent trip to the Wutach Valley I discovered a pile of fossils on a slope by the side of the road which had obviously been disposed by somebody who didn't want them any more. Among other things was a small piece of matrix chock-a-block full of various gastropod species. They all look somehow familiar to me, but I can't for the life of me figure out where they are from, what stratigraphical formation they belong to or what their names are. Does any one have any suggestions?

 

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Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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  • Ludwigia changed the title to Does anybody know where these gastropods might come from or at least to which geological stage they belong?

No idea. But what an outstanding gift someone left for you. Two really neat additional types to boot. Love the decorative pattern on the main group. i suspect they will be recognizable to some TFF member. Maybe the easter bunny was out early.

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this article may be helpful.  It has a figure that shows turritella as they evolved in NA and it may help give your a time frame for the turritella in your samples.      "What, if Anything, Can We Learn from the Fossil Record about Speciation in Marine Gastropods? Biological and Geological Considerations*
  • April 2011
  • American Malacological Bulletin 29(Mar 2011):247-276
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Research Interest
 
17.0
Citations
Margaret M. Yacobucci
Snaebjörn Pálsson
Lee Hsiang Liow
 
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7 hours ago, DPS Ammonite said:

Ideas?

Thanks, but sorry, no good idea.

 

At very first sight, it looks "somewhat" Weitendorf-like (Miocene), but it isn´t. Wrong matrix, no Weitendorf-type Turritellas. And it would have already disintegrated!

@Coco, @fifbrindacier, @marguy

There are other french members here on TFF who know a lot about such material, but I can not remember who they are, maybe @Coco, @fifbrindacier, @marguy know?

 

8 hours ago, Ludwigia said:

They all look somehow familiar to me

Indeed, also to me.

 

Try googling images for --- France Fossil Gastropod ---

 

Franz Bernhard

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Hi,

 

Sorry, I can't help :(

 

Coco

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----------------------
OUTIL POUR MESURER VOS FOSSILES : ici

Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici
Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici
Mâchoires sélaciennes récentes : ici
Hétérodontiques et sélaciens : ici
Oeufs sélaciens récents : ici
Otolithes de poissons récents ! ici

Un Greg...

Badges-IPFOTH.jpg.f4a8635cda47a3cc506743a8aabce700.jpg Badges-MOTM.jpg.461001e1a9db5dc29ca1c07a041a1a86.jpg

 

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I see the question now, I was going to indicate to contact Caterpillar and at the same time I see that ihet provides an indication. 

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11 hours ago, Ludwigia said:

 

G287c.thumb.jpg.a0abbfcea7c87c84a7662e913bb9bd63.jpg

 

 

The large-whorled one in the center has a resemblance to a fig shell, genus Ficus. 

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'Those who cannot remember the past are condemned to repeat it.'

George Santayana

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On 4/4/2021 at 7:54 PM, HansTheLoser said:

Roger, ask A. Nuetzel in Munich. I guess it is Mesozoic.

Thanks Hannes. I have an id request pending by Joachim Gründel, so I think I'll wait that out first.

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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  • 2 weeks later...
On 4/4/2021 at 7:54 PM, HansTheLoser said:

Roger, ask A. Nuetzel in Munich. I guess it is Mesozoic.

Dr. Gründel couldn't say all that much about them since he tends to specialize on the Jurassic. However he's pretty sure that they're from the Early Cretaceous and that the smaller ones could belong to the genus Metacerithium. I sent a request to A. Nuetzel almost a week ago, but he hasn't replied yet.

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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