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Ripples or fossils in coal


Lori LuvsFossils

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post-11638-0-97734200-1469581876_thumb.jpg (Ignore the rock lower right)

A very good friend showed up today with these chunks of Kentucky coal. He's proud of the fossils he found in them. I don't see anything but "ripples", but he's so excited I want him to be right.

I did hunt Kentucky last year, but the fossils I found were very defined & don't look like these. Having said that, I barely know anything about coal. Anyone able to give me good news for him?

(a couple of close up photos following)

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post-11638-0-91668400-1469582676_thumb.jpg

post-11638-0-15990500-1469582643_thumb.jpg

He sees plants. I get it, but I can't say I agree. In this case, I would like to be wrong. What say you ???

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Sorry Lori.

I'm not seeing any fossils there.

Only conchoidal fractures/ hackle fringe.

Regards,

    Tim    -  VETERAN SHALE SPLITTER

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I am torn. On the one hand, the fine detail on the "roots" looks biological. On the other hand, it doesn't make sense structurally. I've definitely seen fractures like the larger scale seen in these items. If I were forced to call it, I'd say even the "roots" are some kind of fracture artifact. Interested to see what experts say.

Info: Craig Hyatt, retired software/electrical engineer

Experience: Beginner, fossil hunting less than a year

Location: Eagle Pass, TX USA on the border with Mexico, hot dry desert

Formation: Escondido, Marine, Upper Cretaceous

Materials: Sandstone, Mudstone, Shale, Chert, Chalk

Typical: Thalassinoides, Sphenodiscus, Exogyra, Inoceramus

Reference: http://txfossils.com/Txfossils.html

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I concur with "hackle fringe" for the "roots". Found some matching images with the same complex branching.

post-20989-0-41015400-1469583583_thumb.jpeg

Info: Craig Hyatt, retired software/electrical engineer

Experience: Beginner, fossil hunting less than a year

Location: Eagle Pass, TX USA on the border with Mexico, hot dry desert

Formation: Escondido, Marine, Upper Cretaceous

Materials: Sandstone, Mudstone, Shale, Chert, Chalk

Typical: Thalassinoides, Sphenodiscus, Exogyra, Inoceramus

Reference: http://txfossils.com/Txfossils.html

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I'd like to bear good news, but I can't. They are Conchoidal fractures in the coal. I have found many fossils in coal. These are not fossils.

It is perfectly understandable how the eye could interpret them as fossils. Enjoy the unique character of these rocks but don't figure them as fossils.

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Dang it, but he took it well. It's always good to hear what others think / know. THANK YOU EVERYONE !!!!

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Dang it, but he took it well. It's always good to hear what others think / know. THANK YOU EVERYONE !!!!

This is a case of YES & NO. The others are correct that the marks / ripples are not fossils. However coal is a fossil made of compressed and carbonized plant material.

So the rock is a fossil but the hackle fringe marks are a product of the force of the brake.

Tony

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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Ynot you are absolutely correct. The coal is fossils and the patterns are not.

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