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Unknown Fossil From Glen Rose?


surfergirlatx

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I found this today at Upper Glen Rose Formation, Trinity Group, Travis County, Texas - Creatous Kgr(l). Its about the size of a quarter. .....Any thoughts?

Thanks

Kim

post-6873-0-35759100-1316906926_thumb.jpg #1 post-6873-0-64006200-1316906944_thumb.jpg #2

post-6873-0-50071000-1316906975_thumb.jpg #3 post-6873-0-09535300-1316906997_thumb.jpg #4

post-6873-0-52796800-1316907032_thumb.jpg #5 post-6873-0-80538100-1316907056_thumb.jpg #6

post-6873-0-56736100-1316907155_thumb.jpg #7

Edited by surfergirlatx

"The road to success is always under construction." Author Unknown.

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There were no trilobites in the Cretaceous.

They died out at the end of the Permian.

I have no idea what that is, but it's cool looking. :unsure:

Any chance of getting it free of the matrix to see the entire thing?

Cool looking, whatever it is!

Regards,

Edited by Fossildude19

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In an earlier post of mine on a track, dhk had mentioned isopod. When I searched it, I read that they appeared in the Carboniferous so maybe that's a possibility.

Otherwise, is it possible that a trilo fossil was exposed then reburied during the cretaceous?

Steve

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i'd say a section of a goniatite is what it looks like, very cool fossil, cant wait to hear what this is...:)

"Your serpent of Egypt is bred now of your mud by the operation of your sun; so is your crocodile." Lepidus

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i'd say a section of a goniatite is what it looks like, very cool fossil, cant wait to hear what this is...:)

Goniatite, trilobite, bivalve or perhaps a gastropod is what I was thinking. Lower right side of pic 2 shows some type of spiraling suture/structure.

Regards,

Coleman~

Knowledge has three degrees-opinion, science, illumination. The means or instrument of the first is sense; of the second, dialectic; of the third, intuition.

Plotinus 204 or 205 C.E., Egyptian Philosopher

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Oddly compressed Trigonia? :blink:

That occured to me until I noticed the tubercles you usually see on trigonia seem to be holes on this guy. Right Kim, holes, not bumps, in the rows?

Edited by BobWill
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That occured to me until I noticed the tubercles you usually see on trigonia seem to be holes on this guy. Right Kim, holes, not bumps, in the rows?

Yes they are holes not bumps.

"The road to success is always under construction." Author Unknown.

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post-6417-0-81942000-1316916015_thumb.jpg

Kim... Trying to focus on just 1 feature of the mystery

Ignoring the overall shape of the mystery fossil...

Wondering if you have seen (in-line) holes like these

on any other collected fossil?

:zzzzscratchchin:

Indy, in all the fossils I have collected, I have yet to see anything like this. The hole indentions is whats throwing me off too.

"The road to success is always under construction." Author Unknown.

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Indy, in all the fossils I have collected, I have yet to see anything like this. The hole indentions is whats throwing me off too.

Interesting...Since you have a HUGE collection.

Couldn't help but notice the limestone. Apparently

collected higher up in the section where fewer fossils

exist. Less fossils but often in these zones one finds

fossils not found in the lower units.

Just me thinking out-loud ;)

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Hard to argue with the trigonid id...good one!

Coleman~

post-1066-0-22668700-1316917744_thumb.jpg

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Knowledge has three degrees-opinion, science, illumination. The means or instrument of the first is sense; of the second, dialectic; of the third, intuition.

Plotinus 204 or 205 C.E., Egyptian Philosopher

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post-6417-0-81942000-1316916015_thumb.jpg

Kim... Trying to focus on just 1 feature of the mystery

Ignoring the overall shape of the mystery fossil...

Wondering if you have seen (in-line) holes like these

on any other collected fossil?

:zzzzscratchchin:

Those holes are what made me think bryozoan. Lattice like structure resembeling finestrate (sp?) bryozoans.

Brent Ashcraft

ashcraft, brent allen

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Few more pics...

post-6873-0-63738100-1316922065_thumb.jpg #1 post-6873-0-01685500-1316922081_thumb.jpg #2

post-6873-0-35142900-1316922102_thumb.jpg #3 post-6873-0-80408300-1316922116_thumb.jpg #4

post-6873-0-49711800-1316922137_thumb.jpg #5 post-6873-0-60237100-1316922151_thumb.jpg #6

Edited by surfergirlatx

"The road to success is always under construction." Author Unknown.

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example of the Cretaceous fossil clam Trigonia

post-6873-0-58019700-1316922421_thumb.jpg

"The road to success is always under construction." Author Unknown.

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Hard to argue with the trigonid id...good one!

Coleman~

Agreed, its hard to argue with the trigonid.

"The road to success is always under construction." Author Unknown.

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If that's an impression of a trigonia it would have holes instead of bumps. For comparison you could look in the limestone blocks that make up the capitol building in Austin. They are full of trigonia external molds.

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the bilobite seems to have 3 body segments, while this fossil has only two segments.

umm..."tri"..."bi"...yeah sometimes I get goofy when the science eludes me. Haven't heard from tracer lately. I know, it's a poor substitute.

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