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Sam S

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I discovered this specimen by chance a few years before I got into fossil hunting. I was on a vacation at Oak Island, North Carolina when I found it. I am thinking it is a Jellyfish fossil.

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13968AE4-7393-4DFA-9473-9775DE3AA0B7.jpeg

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Jellyish fossils are extremely rare and when, then mostly as an imprint, since they are soft bodied creatures. Your fossil looks like the remnant of a horn coral.

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

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21 minutes ago, Rockwood said:

Isn't coastal  NC some distance from Paleocene formations though ? 

True but there are many ways nature and mankind to transport materials to some unexpected areas.

Glacial or peoples gravel drive ways or even old dilapidated concrete.

BTW: I'm on the horn coral wagon.

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53 minutes ago, bone2stone said:

True but there are many ways nature and mankind to transport materials to some unexpected areas.

Glacial or peoples gravel drive ways or even old dilapidated concrete.

BTW: I'm on the horn coral wagon.

It brings the distinction between rugose and scleractinian corals more into focus though. Doesn't it ?

I'm guessing it's perhaps the features seen in this example that are being used as an indication ?

IMG_4576.JPG

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Another for rugose coral. 

 

13968AE4-7393-4DFA-9473-9775DE3AA0B7.thumb.jpeg-vert.jpg   coralmorph.GIF

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Could very well be - corals are not my strong suit. ;) 

    Tim    -  VETERAN SHALE SPLITTER

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"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

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23 hours ago, Fossildude19 said:

Could very well be - corals are not my strong suit. ;) 

I struggle with them myself, but it seems like a situation like this bit me one time for missing the fact that there are very horn like looking solitary scleractinian.

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Now that it has been brought up, this is definitely a coral, but I am not positive that this is a horn coral. What can I clean it with to determine what type of coral it is?

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"Horn" coral vs. the mimics, the cross over grouping of the corals with this "shape".

Finding both here in Texas over the years, and calling them all "Horns or Cones", is so much easier.

Separating them by deposit where found is a less complicated means to keep track as to just what I find.

Just one type is "Horn" and everything else is scleractinian did not seem to make sense.

gallery_9194_2154_433285.jpg

(It seems that mimic corals filling in the niche that horns once occupied is natures way of keeping order in an ever changing environment)

 

None of the above are true "horns" yet all possess the shape without the central column?

(Cone shaped corals)

 

BTW: I still have no ID on the center specimen. (From Eagleford material of Dallas Co. Texas Upper Cret Britton member)

 

Jess B

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The way I see it is 'horn' is just a descriptive term, like 'cone', and could apply to the Mesozoic scleractinian horns as well. The only reason we think of 'horn corals' as Paleozoic is because most of the horns we see are Paleozoic.

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In my modest opinion "horn coral" is a completely informal term applicable to any coral with the appearance of a horn. In no case exclusive of primary corals.
A couple of examples of non-primary horn corals.

Cretaceous (Santonian) example from NE Spain.

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DSCN2293-1.jpg

 

Eocene (Priabonian) example from NE Spain

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try googling "Castle Hayne Formation coral". the Rock looks like Castle hayne Formation and some of it may be found on renourished beaches in Brunswick County.

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18 hours ago, Sam S said:

What can I clean it with to determine what type of coral it is?

I think vinegar is good for this. Be sure to thoroughly rinse it afterward. 

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Yes it is Rugose horn coral, judging by shape and ornamentation I think it is streptelasmatid from Ordovician. 

Best Regards

Domas

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2 hours ago, D.N.FossilmanLithuania said:

judging by shape and ornamentation

Care to elaborate. 

We love a good lesson in this sort of thing.

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  • 3 weeks later...

Thanks for all of your help! It will probably be a while till I get to cleaning it but I will post a pic when I have done so.

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