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What do you make of this?


caldigger

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Recieved a bundle of Mazon Creek nodules and found one I can't seem to ID.

Object is 3cm across and comes up to a shallow cone shape similar to a very old volcano/cinder cone. Any ideas?

 

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When the snow melts in the spring I find the remains of the pockets that roughed grouse spend the night in. They always leave a pile of pellets.

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Thinking its a tad small for grouse.

 

I can't be sure what is in the center. If they were fecal pellets, they are now stone like the rest.

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16 minutes ago, caldigger said:

Thinking its a tad small for grouse.

Behaviorally speaking. There is also a morphological similarity. 

Lateral thinkers will understand. ;) 

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Looks almost sponge like, given its location I think perhaps @Nimravis could shed some light on it.

“...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin

Happy hunting,

Mason

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5 hours ago, westcoast said:

Is the centre of the cone filled with fecal pellets??

It does look like fecal pellets that are some times found associated with Mazon Creek leeches.

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Hey Lori, how cool would that be...Poop on a Cone?!  I'll take a double scoop.

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Very curious and interesting. If not for those little things in the center I’d have said it was only a concretion.

 

@WhodamanHD  I think it resembles a sponge too.

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Cross-section through a Lepidostrobus cone or similar? Doesn't look like a sponge to me, but those lines out to the sides suggest plant...

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23 minutes ago, Spongy Joe said:

Cross-section through a Lepidostrobus cone or similar? Doesn't look like a sponge to me, but those lines out to the sides suggest plant...

I know it isn’t sponge it just bears some resemblance to on from other geologic periods though.

I assume the other cone features are buried in the concretion rather than being weather worn. Still very cool that it’s a come.

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I remembered a topic a while back that had these two sponges, one Pleistocene and one undated.

@abyssunder posted one of them.

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“...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin

Happy hunting,

Mason

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2 hours ago, caldigger said:

Hey Lori, how cool would that be...Poop on a Cone?!  I'll take a double scoop.

I was thinking more of a poop volcano or petrified sphincter! :raindance:

I've been reading about sponges lately and how critters lived inside them. Even if this isn't a sponge, perhaps a little critter lived in there, or at the very least used it as a Carboniferous outhouse.

 

 

 

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I'm still leaning towards fecal pellets, similar to the ones on a leech of mine below, but ostracods could be a possibility or we all could be wrong :)

 

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Bergaueria isp. would be my best guess.

 

LoBue_ku_0099M_11065_DATA_1.thumb.jpg.7890c9d69e0489b5993720e583253c50.jpg

FIGURE 8—Bergaueria and cf. Biformites isp. (A) Bergaueria cf. perata—PE 51561. (B–D) Bergaueria radiata: (B) PE 51620a with centrally located cylindrical iron concretion. (C) PE 51620b. (D) PE 51620c. (E) cf. Biformites isp.—PE 51656

 

excerpt from D. J. LoBue. 2010. Ichnotaxonomic Assessment of Mazon Creek Area Trace Fossils, Illinois, USA. Thesis.

 

 

 

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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

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18 minutes ago, GeschWhat said:

Now that's cool!!!

Yes, it is cool when that occurs. 

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3 hours ago, GeschWhat said:

or at the very least used it as a Carboniferous outhouse.

Like maybe it dove into the mud for the night/day then in the morning/evening had a good constitutional and took off ?

Sort of the way roughed grouse do.

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7 minutes ago, GeschWhat said:

You'll have to photograph those grouse latrines for me next spring :D

Stand by. I think I just need to find one.

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