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Gigantic Horn Coral I.d Please!


Sinopaleus

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:) alright, so i got myself a new fossil. it's a huge horn coral the size of a banana, and it's got a really rough texture. it's from Guangxi Province, and the seller claims that it is from the Ordovician. can someone please I.D this coral for me? thanks! ;)

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post-4996-0-06674100-1308230389_thumb.jpg

post-4996-0-92302600-1308230408_thumb.jpg

post-4996-0-95957900-1308231058_thumb.jpg

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It's almost certainly a horn coral but it shows pretty clear signs of being tooled - the "segments" have been... let's say enhanced.

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It kind of looks like they glued 2 horn corals end to end to make one twice as long as normal. Note the line through the middle. Those Moroccans are creative folk!

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It kind of looks like they glued 2 horn corals end to end to make one twice as long as normal. Note the line through the middle. Those Moroccans are creative folk!

lol... its from china :P

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Hello,

It's true that in the first picture, we can think about a montage but with the others pictures(2&3), we can see the calice.

Perhaps it's a characteristic of this specie. Agitated environment, changing of T°C, or competition with others corals(Light, space...) can influence the growth and shape too.

I am not enough specialist of rugosae coral from ordovician period to give a name of genus.

Regards

D

Edited by Dromiopsis
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Hello,

It's true that in the first picture, we can think about a montage but with the others pictures(2&3), we can see the calice.

Perhaps it's a characteristic of this specie. Agitated environment, changing of T°C, or competition with others corals(Light, space...) can influence the growth and shape too.

I am not enough specialist of rugosae coral from ordovician period to give a name of genus.

Regards

D

lol, im glad to hear that. B) i saw another horn coral identical to this one, both huge in size, but that one didn't have any broken segments. i hope that helps :blush:

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I've seen those corals for sale on E-bay and thought about getting one but was always leery because they looked doctored. I could see most had been in an acid bath to clean them which often removed any associated epifauna that might have been there. Yours looks like it has been on a grinder to make the regular segments and the very base looks shaped as well. They are cool looking but I want as natural looking as possible!

-Dave

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Check out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/

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I've seen those corals for sale on E-bay and thought about getting one but was always leery because they looked doctored. I could see most had been in an acid bath to clean them which often removed any associated epifauna that might have been there. Yours looks like it has been on a grinder to make the regular segments and the very base looks shaped as well. They are cool looking but I want as natural looking as possible!

oh. i see... :mellow: i got it for free anyways lol :D but acid bath?? it doesn't look acid bathed to me :blink:

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for picture 3, the strange dent you see is possibly caused by a rock. the dent is somewhat round, but the other sides are perfectly fine. in the segments below are exposed agate. the agate seems to have replaced the inside of the coral loong before this was discovered. geez... that reminds me of the red agatized horn corals from utah! :o but the agate in this is clear.

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  • 6 months later...

It doesn't look fake to me. I collect in Ohio, much smaller ones.Largest is 4-5 inches. I've seen them this size and larger from upstate NY. I was given one, in fact, that is about 5 inches but if "straightened out" could be 6-7 inches.

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Henry, I think the last photo clearly shows grinding on the upper half of this coral. :(

The human mind has the ability to believe anything is true.  -  JJ

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you found my Crossant....

PUBLICATIONS

Dallas Paleontology Society Occasional Papers Vol. 9 2011

"Pennsylvanian Stratigraphy and Paleoecology of Outcrops in Jacksboro, Texas"

Author

Texas Paleontology Society Feb, 2011

"Index Fossils and You" A primer on how to utilize fossils to assist in relative age dating strata"

Author

Quotes

"Beer, Bacon, and Bivalves!"

"Say NO to illegal fossil buying / selling"

"They belong in a museum."

Education

Associates of Science - 2011

Bachelors of Science (Geology & Biology) - 2012 est.

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Disclaimer: Not an expert on corals from China

These old eyes don't see 2 corals glued together. The coral could have

been broken and glued back together and possibly some prep work.

Here's a large horn coral from China: Link

:D

Barry, I'm no expert either. I would suppose that horn corals can get pretty large, but the coral in the link you provided has two very straight lines on it... :mellow: On the other hand, the ribbing looks much more natural than on the upper part on Henry's example. At least Henry got his for free. :) And now the horn coral dance... Meg%20Dance.gif

The human mind has the ability to believe anything is true.  -  JJ

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Rugous corals of that size (and even larger) are no rarity in the middle devonian reefs of the Eifel region (Germany), e.g. Meerbüsch locality near Ahütte (Givetian). Size alone is no argument that two individuals must have been glued.

araucaria1959

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If you take a look at the thread entitled "how many horn corals are there?" I posted my largest @ just over 8 inches. It not only very large, but has great detail. I would post a link, but I am on a plane right now. Maybe somebody can give me a hand?

EDIT: Here you go:

post-423-0-02453800-1326332178_thumb.jpg

>LINK< to other pictures.

Edited by Auspex

Troy Nelson

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that's reasonable :mellow: it is said to be from guangxi province ;)

saw a few more for sale inside the country. to me, its obviously not glued together lol :P massive specimens have indeed been found inside guangxi province, near the place where the brachs (spirifers, atrypas etc) were found

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I'm holding in my hand a 6-7" horn coral very similar to these pictured. They have similar lines'striations as those some of you think are grinding marks. Mine is authentic - from upstate NY. No doubt these pictures are valid. Excellent specimen as far as I'm concerned.

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  • 5 years later...
20 minutes ago, Pierre said:

Hi guys,

I have a question.  I attached the foto of the fossil. What it could be? Fossil horn?

 

 

DSC_0053.JPG

This is an orthocone cephalopod. Not a horn coral.

 

It would help You to start Your own thread rather than hijack someone elses thread. Also if You include a scale and location information.

Darwin said: " Man sprang from monkeys."

Will Rogers said: " Some of them didn't spring far enough."

 

My Fossil collection - My Mineral collection

My favorite thread on TFF.

 

 

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