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TNCollector

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cool stuff Jim..Id go with sandalodus for the crusher teeth though; as psammodus tend to be more rectangular.

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More cool finds, Jim!

Thanks for showing us.

Regards,

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

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"In every walk with nature one receives far more than he seeks."

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WOW, those are some neat finds!!

Tony

Thanks Tony!

More cool finds, Jim!

Thanks for showing us.

Regards,

Thanks Tim! I hope everyone enjoys them as much as I do.

cool stuff Jim..Id go with sandalodus for the crusher teeth though; as psammodus tend to be more rectangular.

Thanks Jim! Truthfully I am not confident in the IDs that I gave them. I am fairly sure that the ID of Deltodus is good for the bent one, see this here: http://www.lakeneosho.org/Miss8.html. But you might be right about the one in the rock, I will relabel it as sandalodus.

I wish there was more literature on these teeth, the best resource is the Illinois Geological Survey Volume 6, written in 1875...

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Awesome!

Bulldozers and dirt Bulldozers and dirt
behind the trailer, my desert
Them red clay piles are heaven on earth
I get my rocks off, bulldozers and dirt

Patterson Hood; Drive-By Truckers

 

image.png.0c956e87cee523facebb6947cb34e842.png May 2016  MOTM.png.61350469b02f439fd4d5d77c2c69da85.png.a47e14d65deb3f8b242019b3a81d8160.png.b42a25e3438348310ba19ce6852f50c1.png May 2012 IPFOTM5.png.fb4f2a268e315c58c5980ed865b39e1f.png.1721b8912c45105152ac70b0ae8303c3.png.2b6263683ee32421d97e7fa481bd418a.pngAug 2013, May 2016, Apr 2020 VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png.af5065d0585e85f4accd8b291bf0cc2e.png.72a83362710033c9bdc8510be7454b66.png.9171036128e7f95de57b6a0f03c491da.png Oct 2022

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Awesome shark teeth! I wish I had a site like that around here!

Stephen

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Very nice finds, thanks for the informative reports and the images of you finds

Regards

Mike

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  • 1 month later...

Been a while since I posted here, been very busy this past week, but I have three trips to post on: A trip to the Devonian Birdsong shale of West TN., a trip to the Cretaceous Coon Creek Formation of West TN., and a trip to the Bangor Formation quarry that I frequent. I will start with the Bangor Formation trip. My dad drove up for the week of father's day and wanted to go fossil hunting, so I took him to my favorite Bangor Formation quarry in East TN. It took a while to train his eyes to distinguish the black chert from bradyodont shark's teeth, but once he figured it out, he found quite a few teeth. We both did actually, and ended up with a total of 11. We could have found more I am sure, but it was extremely hot down in the quarry so we could only stay for a few hours.

Here is the first tooth. My dad found it while splitting large blocks of limestone on their bedding planes. I told him not to waste his time breaking rocks, but this method actually proved to be successful for him, to my surprise. This tooth may not look much like a tooth because it is mostly covered in a thin layer of limestone that I need to clean off, but it is indeed a nice, quarter size Paleozoic crusher shark's tooth. It popped right out of the bedding layer when he broke a limestone boulder.

Psephodus sp.

Bangor Formation

Chesterian Series

Eastern TN.

post-17665-0-67419100-1466865986_thumb.jpg

He also found this nice tooth on a truck size boulder. Came to me asking me if it was a tooth, and indeed it is. There is quite a bit more of the tooth buried under the rock. If I ever feel like it, I will try to prep it out a bit.

Cochliodus sp.

Bangor Formation

Chesterian Series

Eastern TN.

post-17665-0-14203500-1466866216_thumb.jpg

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My dad also found this tooth, it is small, but is in pretty good condition.

Psephodus sp.

Bangor Formation

Chesterian Series

Eastern TN.

post-17665-0-16296500-1466866356_thumb.jpg

Here is a good size but not so good condition tooth that I found underneath a tree on a large boulder. It was very difficult to extract. I spent a bit too much time on it, but in the end I am glad I got it. I am not sure on its ID, but the worn down ripples lead me to think it might be a Poecilodus sp. I am not confident in that ID.

Poecilodus sp.?

Bangor Formation

Chesterian Series

Eastern TN.

post-17665-0-09091300-1466866560_thumb.jpg

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This next tooth is largely hiding inside this boulder. I really want to try prepping it out as it might be a nice one, but I don't have the proper tools unfortunately :( .

Petalodus sp.

Bangor Limestone

Chesterian Series

Eastern TN.

post-17665-0-71830500-1466866704_thumb.jpg

Next up is this nice little Helodus sp. tooth. I really like the shape of these teeth. They are by far the most common tooth that I find in the quarry. I found three that day.

Helodus sp.

Bangor Limestone

Chesterian Series

Eastern TN.

post-17665-0-29691800-1466866868_thumb.jpg

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This is another Helodus sp. that weathered itself onto a 3D pedestal. You can actually see the bottom of the tooth. It is only attached to the rock on its edge.

Helodus sp.

Bangor Formation

Chesterian Series

Eastern TN.

post-17665-0-68337000-1466867012_thumb.jpg

post-17665-0-80004200-1466867077_thumb.jpg

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Another little Helodus sp. tooth I found sitting in a pile of weathered red crumbly matrix.

Helodus sp.

Bangor Formation

Chesterian Series

Eastern TN.

post-17665-0-61364500-1466867212_thumb.jpg

And finally some blastoids. These need to be prepped with the air abrader.

Pentremites sp.

Bangor Formation

Chesterian Series

Eastern TN.

post-17665-0-41080300-1466867318_thumb.jpg

That is it for the Father's Day Bangor Formation trip, hope you all like these finds! :)

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Those are some cool finds. Love the paleozoic shark teeth!!

Tony

Love those paleozoic shark teeth. Thanks for posting.

Thanks Tony and Peat! Early sharks were very interesting creatures.

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Don,

I have seen teeth including a couple of large Symmorium damaged by prep because the dealer/preparator thought he could etch Mississippian specimens out of limestone without buffering the acid (or perhaps he didn't know about that). You could tell the teeth weren't weathered but eaten into by acid. It's what happens when you're too much in a hurry or you just think you know what you're doing. Prep isn't for the impatient or the arrogant.

Jess

I wonder how phosphatic these teeth are. Might it be possible to etch them from the limestone matrix using buffered acetic acid? As I recall, with this technique you buffer the acid with sodium phosphate, which reduces the solubility of solid phosphate (such as the fossil) so it is not etched while the acid dissolves the carbonate (limestone) matrix. People use this approach for recovering conodonts from limestone.

Don

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Oh yeah, that's a heartbreaker. It happens to all of us. I like the idea of putting a piece of tape on a tooth sticking out of rock while you try to chop around it but you can also drop a little superglue on the tooth and right around it to help keep them together. Give it a few minutes to set. Fossils are almost always more crunchable than the rock that contains them.

Next site was a spot that I showed Jim for the first time. It is the Bangor Limestone, and contains some cool finds! I found several teeth and some neat inverts. Jim found a large conularid, a rarity for this formation.

I spent quite a while busting this large tooth out of the rock. Nearing the end, I scream, Jim looks over....we both knew what happened, it busted in about 30 pieces. I picked up as much as I could and spent a few hours gluing it back together under the microscope at home, but it is still really busted up. Regardless, it is the largest cladodus I have ever found, and at least I got the tip.

Cladodus sp.

attachicon.gifgiant_cladodus.jpg

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Oh yeah, that's a heartbreaker. It happens to all of us. I like the idea of putting a piece of tape on a tooth sticking out of rock while you try to chop around it but you can also drop a little superglue on the tooth and right around it to help keep them together. Give it a few minutes to set. Fossils are almost always more crunchable than the rock that contains them.

Yeah, I normally coat the teeth in rubber cement so that if they break I have all of the pieces, but this one was largely covered in rock, so I didn't realize how big it was and didn't coat it adequately. It is a sad feeling when you realize that a fossil was perfectly fine for 340 million years and I come around and break it in less than 10 minutes.

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hey, good stuff there Jim!

Thanks! It was a really fun trip. After the 4th, I will post another report on my trip to the Devonian of West TN. Tune in, there are lots of very nice inverts

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  • 3 weeks later...

This trip report is a bit late, but I have been super busy with work. Finally have the time to show off my finds. Early in June I set off to West Tennessee to visit friends and of course search for some fossil goodies. I intended to search the Cretaceous of MS, but unfortunately Mother Nature decided to thunderstorm the day I chose to fossil hunt, so my muddy Cretaceous site in MS was out of the question, instead, I tried a site I have been intending to search for a long time, the Devonian Birdsong Shale. The birdsong shale was at one point a thriving reef ecosystem with all kinds of invertebrate life. It is known amongst scholars to produce a diverse assemblage of exquisitely preserved fossils from this reef ecosystem.

The day started off pretty rough with thunderstorms rolling in and out every hour or so. I honestly would have probably preferred for it to just constantly rain, because every time it stopped raining, the heat from the sunlight would rapidly evaporate the water off of the rocks, creating a sort of outdoor sauna. It was not comfortable hunting, and anyone in their right mind would of skipped the trip, but I had travelled too far not to get any fossils out of it.

The formation here is a clayey shale, very loose and very sticky. The fossils were all loose, and were so abundant that they were literally stacked one on top of the other. I only stayed for 1 and a half hours or so, but still brought it a good haul. I also went to a Cretaceous site in TN, but I will post on that later on. Here are the finds!

Lots o' fossils

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-06185100-1469154021_thumb.jpg

Pseudoatrypta brachiopods (mostly)

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-02752000-1469154211_thumb.jpg

Pseudoatrypta brachiopod

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-59321900-1469154330_thumb.jpg

Leptaena acuticuspitada brachiopod

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-90222400-1469154477_thumb.jpg

Edited by TNCollector
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Dicomyorthis oblata brachiopods

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-22129400-1469154622_thumb.jpg

Obturamentella wadei brachiopod

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-69618600-1469154786_thumb.jpg

Macropleura macropleura brachiopod? (I am not sure about this one, any help is appreciated)

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-56589800-1469154932_thumb.jpg

Edited by TNCollector
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Meristella atoka brachiopods

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-36245700-1469155561_thumb.jpg

Levenea subcarinata brachiopods?? (some might not be, I am not sure)

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-42369700-1469155743_thumb.jpg

Streptelasma strictum horn corals

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-70254600-1469155157_thumb.jpg

Pleurodictyum lentinularum corals

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-10337900-1469155876_thumb.jpg

Edited by TNCollector
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Edriocrinus adnascans parasitic crinoid on Pseudoatrypta brachiopod host

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-46916900-1469156071_thumb.jpg

Dalmanites retusus trilobites

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-34446300-1469156216_thumb.jpg

Platyceras gastropods (I think??)

Birdsong Shale Member of the Ross Formation

West TN

post-17665-0-79300500-1469156378_thumb.jpg

That's it for now! :)

Edited by TNCollector
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Very cool finds. That's a great haul for an hour and a half. Congrats. Is the site Lower Devonian or Middle Devonian? Most appear Lower Devonian but Pseudoatrypa I've only found in the Middle Devonian of Western NY.

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