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I bought this ammonite in San luis potosi, Mexico. It comes from the geological formation of Taman. Which is late Tithonian- kimmeridgian in age. This ammonite looks weird!!! Can you'all help me identify the genus.20170107_164824.jpg20170107_164827.jpg

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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Okay, I'll post some new photos!!!

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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Here they are!!!

20170107_165810.jpg

20170107_165802.jpg

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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That sure is a strange looking one. Never seen anything like it before. The way the ribs go in opposite directions on the inner and outer whorls is confusing, even somewhat suspect. It almost looks like a smaller one has been fit into the larger one.

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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I'm thinking Taramelliceras!!!:ammonite01:

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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I'm not so sure. It's certainly not a T. canaliculatum if that's what you're thinking. Wrong stratigraphy and a different sculpture and form. Please post photos of the venter and the aperture.

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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One of the stragest, I agree. The ribs goes in the same orientation but with different curvature. I think Ramon is very close to the ID, also you Roger. Ochetoceras zio (Oppel), would be an excellent match.

 

image001.jpg

 

Seeing the resemblance I would say...Wow!

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

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2 hours ago, Ludwigia said:

I think I might have found something. Check out Ochetoceras, particularly O.zio.  I believe they ranged up into the Tithonian.

Yeah it really does look like it!!! And it lived in mexico too.

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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I checked fossilworks.org, ochetoceras cf. Neohispanicum is found in the Taman formation of san luis potosi, Mexico!!!

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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Then you must have noticed that the stratigraphy is Kimmeridgian rather than Tithonian. That would fit better. Did you find a photo of the type specimen in the UNAM?

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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7 hours ago, Ludwigia said:

Then you must have noticed that the stratigraphy is Kimmeridgian rather than Tithonian. That would fit better. Did you find a photo of the type specimen in the UNAM?

Yeah, I was wrong about the age. I found this picture of an Ochetoceras from the Taman formation.image008.jpg

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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Yeah, finally!!!

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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4 minutes ago, StormDancer said:

That is unusual, never seen one like it.....Nice

Thanks, StormDancer!!!

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

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The species could be Ochetoceras Mexicanum. Although many species have been found from there. 

 

Photos of Ochetoceras Mexicanum

 

image001.jpg

 

image005.jpg

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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Here's some photos of Ochetoceras Mexicanum and my fossil.

 

20170110_164400.jpg

 

 

20170110_164716.jpg20170110_164613.jpg

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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You have the specimen in your hand.  You could see details that others can't see. Considering the latest revision , I think you could put a label to your nice ammonite, also, it has a good resamblance with your last comparative pictures. I couldn't say more than this, but the details you could find in all of the references might lead you to conclude properly, I think.
 Really nice one! Thanks for uncover it from the shade. :)

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

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  • 1 month later...

Guys, now I'm really confused!!! :headscratch:

 

So, I found this picture of an ammonite. It said it from the jurassic of Mexico. It looks just like mine. It is labeled as Anispiceras. I haven't been able to find anything else on the genus Anispiceras. Any help would be appreciated!!!

 

Anispiceras_technivquis.JPG.ff783054012dc5fd326520c118102c3b.JPG

 

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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And could this be a synonym of Ochetoceras zio???

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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3 hours ago, Ramon said:

Guys, now I'm really confused!!! :headscratch:

 

So, I found this picture of an ammonite. It said it from the jurassic of Mexico. It looks just like mine. It is labeled as Anispiceras. I haven't been able to find anything else on the genus Anispiceras. Any help would be appreciated!!!

 

 

 

Never heard of that. I think you've got some "fake news" there. Nothing unusual in the internet.

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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What a shame!!! This ammonite and mine look exactly alike!!! There probably the same taxa. I wish they would label it right!!!

 

"Without fossils, no one would have ever dreamed that there were successive epochs in the formation of the earth" - Georges Cuvier

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