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Mazon Creek ID help


CBOB

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Hey Everyone!  Happy new year!

 

A nodule from South Pit 11 Mazonia area split and can't figure out what it is?  Millipede? Shrimp tale?  I have the Wittrey book I've been looking through and I see similar features on multiple animals from his pictures.

 

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Thanks for your help!

 

 

 

 

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Millipede seems like a reasonable ID. I don't know enough about Carboniferous arthropods to narrow it down any further, though.

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Ooooo, that is a tough one. I would guess Cryptocaris hootchi simply based on the amount of equal segments. 

 

@fiddlehead or @RCFossils could possibly have a definitive answer for this. 

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@Nimravis  may be able to help on this also.

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Looks like a millipede to me, though I suppose it could be some other hexapod or maybe a weird worm. I patiently await the experts responses

Happy hunting,

Mason

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I cannot tell for certain from the pictures but your specimen appears to be a type of wingless insect called Dasyleptus.

They are the most commonly found insect in the Mazon Creek deposit although they have never been described.

I cannot see any signs of the long bristletail but you might be able to have it prepped out of the rock.

Congratulations on a nice find.

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As @RCFossils , I am also leaning towards a Monura (Silverfish). Here are a couple examples from my collection that were identified by Jarmilla Kukalova-Peck from Carleton University, Ottawa. She is now retired and is a paleontologist who specialty is insects.

 

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Here are a few from my collection.

I think it is pretty likely that there are numerous undescribed types.

This specimen looks similar to yours however a portion of the tail spine is preserved.

D2A985CB-AE41-4DF6-A4C6-2BDDF09173DF.jpeg

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This is one of my favorites.

it preserves legs and antennae.

Dr Eugene Richardson examined this specimen and identified plant spores in the digestive tract.

5281FFD4-35E2-4FF0-A72B-FFA6A98E8536.jpeg

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3 hours ago, fossilized6s said:

Ooooo, that is a tough one. I would guess Cryptocaris hootchi simply based on the amount of equal segments. 

And for those wondering about Crytocaris hootchi and how it looks just like the Fossil found by @CBOB , here is a Crytocaris hootchi from my collection, I think it is my only one.

 

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Millipede vote from me. Can you zoom in on the specimen some? Would love to see the little details.

Every single fossil you see is a miracle set in stone, and should be treated as such.

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27 minutes ago, MeargleSchmeargl said:

Millipede vote from me. Can you zoom in on the specimen some? Would love to see the little details.

You never know- it could be, it is always hard when you can't see the details- when I first saw it, I thought that it was an Acanthotelson stimpsoni shrimp- But I still vote for Monura.

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6 hours ago, RCFossils said:

I cannot tell for certain from the pictures but your specimen appears to be a type of wingless insect called Dasyleptus.

They are the most commonly found insect in the Mazon Creek deposit although they have never been described.

I cannot see any signs of the long bristletail but you might be able to have it prepped out of the rock.

Congratulations on a nice find.

 

I too thought it could be Dasyleptus from the Mazon Creek Fossil Fauna book by Wittry but my specimen lacked the detail of the bristletail.  That then led me to think more along the lines of millipede.  But the body segmentation of my fossil looks almost identical to the Dasyleptus example pictured in the book.  Thanks for the other pics too!

 

 

3 hours ago, Nimravis said:

You never know- it could be, it is always hard when you can't see the details- when I first saw it, I thought that it was an Acanthotelson stimpsoni shrimp- But I still vote for Monura.

 

It does look "shrimpy" to me too but agree now that I think I have a Dasyleptus/Monura.   And thanks for the pics!

 

 

3 hours ago, MeargleSchmeargl said:

Millipede vote from me. Can you zoom in on the specimen some? Would love to see the little details.

 

These pics were from my phone.  That was as close as I could get.  I have no macro settings available on my phone.  I will try to get out my digital camera for some more up close pictures to reveal any other details from the fossil.

 

 

Thanks everybody!

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