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Coprolite Questions


Misha

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Hello everyone,

I am slowly trying to get the things in my collection more organized and here I have a piece of what was sold to me as coprolite from Madagascar,

I was wondering if we can certainly call this a coprolite and not just a concretion,

And if so what animal could it have come from or what the age is as that was not given along with the piece.

Ruler is in inches.

Thank you everyone.

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I believe these are often sold as turtle coprolites.

Don't know whether it's true or not, though.

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2 hours ago, Tidgy's Dad said:

I believe these are often sold as turtle coprolites.

Don't know whether it's true or not, though.

Ever find anything in Tidgy's litter box that remotely resembles these things?

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6 hours ago, caldigger said:

Ever find anything in Tidgy's litter box that remotely resembles these things?

Very vaguely like it occasionally, i suppose.

But she's a tortoise. 

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On 5/11/2019 at 1:03 PM, JohnBrewer said:

Always sold as turtle coprolites from Madagascar. :) 

 

21 hours ago, Rockwood said:

sold as < is :)

Would that make it "turdle"?

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Mark.

 

Fossil hunting is easy -- they don't run away when you shoot at them!

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5 hours ago, Carl said:

I have no confidence that these are genuine coprolites. 

I agree.  I've found similar unusual shaped rocks that were just weird, exfoliating mudstone concretions.  

 

There are "billions and billions" of poop shaped, naturally formed (non-poop) rocks in the world.  :D

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

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Has anyone examined any of them for interior organic remains?

 

 

Mark.

 

Fossil hunting is easy -- they don't run away when you shoot at them!

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17 hours ago, Mark Kmiecik said:

Has anyone examined any of them for interior organic remains?

I am sure somewhere, sometime, someone has tried.

How else did they find mazon creek.

Darwin said: " Man sprang from monkeys."

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

 

My Fossil collection - My Mineral collection

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Most of the rocks sold as coprolites are not. Many are hardened siderite mud extruded through harder rocks due to pressurized gases. The most common ones, those sold from the Miocene Wilkes Formation in Washington State, contain no recognizable matter such as bones, shells and plants. In fact the formation contains no vertebrate remains of a possible coprolite maker. 

 

https://blogs.plos.org/paleo/2014/07/23/pseudo-poo-glitters-isnt-fecal-gold/

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20 hours ago, JohnBrewer said:

That’s interesting. What do you think that they could be? 

I honestly don't know. But they lack several of the features we want to see in order to ID them as coprolites: phosphatic chemistry, biologic inclusions, associated vertebrate fossil context. I'd love them to be coprolites but they don't offer anywhere near enough proof. I'd just love to know what they are.

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17 hours ago, ynot said:

I am sure somewhere, sometime, someone has tried.

How else did they find mazon creek.

Right -- so, if they have been examined and found to be Moroccan coprolites, what's the problem? I don't get it.

 

 

Mark.

 

Fossil hunting is easy -- they don't run away when you shoot at them!

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55 minutes ago, Mark Kmiecik said:

Right -- so, if they have been examined and found to be Moroccan coprolites, what's the problem? I don't get it.

Moroccan?

 

Otherwise, many incorrect identifications have gained popularity, but are still wrong.  There are many that see a mosasaur coprolite in every geologically originated pyrite/marcasite/limonite nodule; but, it doesn't make it so...neither does an out of context, vague similarity to an image in a scientific article.  Guesses are guesses; an identification takes another level of evidence.  ;)

 

 

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2 minutes ago, JohnJ said:

Moroccan?

 

Otherwise, many incorrect identifications have gained popularity, but are still wrong.  There are many that see a mosasaur coprolite in every geologically originated pyrite/marcasite/limonite nodule; but, it doesn't make it so...neither does an out of context, vague similarity to an image in a scientific article.  Guesses are guesses; an identification takes another level of evidence.  ;)

 

 

Oops, meant Madagascar -- my bad.

 

 

Mark.

 

Fossil hunting is easy -- they don't run away when you shoot at them!

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On 5/10/2019 at 10:38 PM, Misha said:

sold to me as coprolite from Madagascar

Of what geologic age is it purported to be? Is the name of the formation known?

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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18 minutes ago, Auspex said:

Of what geologic age is it purported to be? Is the name of the formation known?

Nothing other than Madagascar is known

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Mine said Eocene, but again i'm not saying it is! :)

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Life's Good!

Tortoise Friend.

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Well, it certainly looks like something scooped out of the litterbox, but that may just be why they called it a coprolite.

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"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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this is the small one i found that i had posted here a while back it looks very similar but just a small portion ... mine was found in Texas USA near Houston from Brazos River

I have found fragments of fossilized turtle shells also. The pics are not too good but a few you can see the texture in.

 

 

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2 hours ago, Auspex said:

Well, it certainly looks like something scooped out of the litterbox, but that may just be why they called it a coprolite.

This is certainly part of it. What do you think sells better: fossil poop or anomalous extrusive ironstone? Dino dung or amorphous silica mass? Marketing of fossils is an entirely different venture from scientific identification. I wouldn't trust the "coprolites" from Washington, Madagascar, Utah, or any pyritized mosasaur feces. Caveat empturd.

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4 minutes ago, Carl said:

Caveat empturd

Nice title for a sub-forum in "Is It Real?".

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"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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