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Thought It Was A Tooth At First


Keeper

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When i saw it laying there I thought it was a tooth, but when I picked it up I could tell it wasn't. I've read about fossil waves?? Thats what it looks like, ripples in the sand. It's a gray, hard solid rock (matrix). Was found in NW Missouri.

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Picture resolutions are pretty low. But could be some kind of trace fossil, tracks, etc.

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Sorry, looks like just a rock to me.

Regards,

    Tim    -  VETERAN SHALE SPLITTER

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Might be a trace or just water worn. As to the ripples I have an entire beach near me that is Ordovician. It lies between two of the known deposits and has great preservation of the rippled sand. You can walk on a beach that is millions of years old, pretty cool. It is big enough that if you know the location you can see it on Google Earth or maps.

Edited by ghost1066
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How are the corrugations oriented relative to the bedding plane?

"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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How are the corrugations oriented relative to the bedding plane?

That's a very relevant question.

I suspect those are probably what are called “sole marks” (eroded ones), which arise in pretty much all sedimentary rocks at the interface between two different rock strata. They are furrows or the casts of furrows (ie they can be positives or negatives) made in the original unlithified sediment by rivulets of water, drag marks from sticks, stones, shells etc being carried by water, algal deposits growing with the water current and various other causes.

The sets of parallel ones that can look like a finger-grip are normally called “flute-casts”. They are commonly mistaken for fossils or man-made carvings.

[unrelated post-script: what's that little grey button "mark this post as informative all about? Never noticed that before. Does it appear automatically, or is it invoked by the poster?]

Roger

I keep six honest serving-men (they taught me all I knew);Their names are What and Why and When and How and Where and Who [Rudyard Kipling]

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.....[unrelated post-script: what's that little grey button "mark this post as informative all about? Never noticed that before. Does it appear automatically, or is it invoked by the poster?]

That's something we're working on that has the potential to be very cool. It's not yet ready for roll-out, but stay tuned! :)

"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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