Bedrock Posted February 9, 2020 Share Posted February 9, 2020 MONTANA, Rosebud County find but within eyesight of Garfield County. This was not found in situ but recovered at the bottom of a wash along with dozens of other fragments. The smaller piece attached below is from the same section. Size of dental battery is 9"x4". Size of smaller tooth section is 3"x2". 8 1 Link to comment Share on other sites More sharing options...
Rockwood Posted February 9, 2020 Share Posted February 9, 2020 I hope you can find a crew this could require opening a quarry. 2 Link to comment Share on other sites More sharing options...
Peat Burns Posted February 9, 2020 Share Posted February 9, 2020 Nice find. Hadrosaur. Edmontosaurus maybe. 3 Link to comment Share on other sites More sharing options...
Troodon Posted February 9, 2020 Share Posted February 9, 2020 Nice find looks like a Hell Creek Fm which makes it an Edmontosaurus. 4 Link to comment Share on other sites More sharing options...
dinosaur man Posted February 9, 2020 Share Posted February 9, 2020 Agreed Edmontosaurus dental battery, Amazing find!! 1 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted February 9, 2020 Share Posted February 9, 2020 Terrific find! Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Shamalama Posted February 9, 2020 Share Posted February 9, 2020 Is that life wear on the teeth or weathering/fractures? -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
Rockwood Posted February 9, 2020 Share Posted February 9, 2020 Fractures Most of them were not exposed yet. Link to comment Share on other sites More sharing options...
minnbuckeye Posted February 9, 2020 Share Posted February 9, 2020 Can someone explain what I am looking at. This is confusing to me. Thanks! Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted February 9, 2020 Share Posted February 9, 2020 2 minutes ago, minnbuckeye said: Can someone explain what I am looking at. This is confusing to me. Thanks! Google "edmontosaurus teeth" the first few images are worth, as they say, a thousand words. 1 Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
minnbuckeye Posted February 9, 2020 Share Posted February 9, 2020 Pictures did not help much other than saying these are edmontosaurus teeth. I didn't question that. I see bone at the top of the picture but can not relate whether the teeth are split or whether this is the chewing surface. Anatomical location of this picture is what I am after. Link to comment Share on other sites More sharing options...
Ludwigia Posted February 10, 2020 Share Posted February 10, 2020 Wow! Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Peat Burns Posted February 10, 2020 Share Posted February 10, 2020 1 hour ago, minnbuckeye said: Pictures did not help much other than saying these are edmontosaurus teeth. I didn't question that. I see bone at the top of the picture but can not relate whether the teeth are split or whether this is the chewing surface. Anatomical location of this picture is what I am after. It's one side of the "lower jaw". There are linear grooves or channels into which the teeth rest. There are multiple teeth stacked one atop the other in each groove. As one is worn off and lost, another pushes upward into place. In the image, the left side is proximal and the right side is distal. Here is a poorly preserved one in our collection where the teeth were not preserved / recovered. You can see the channels where the teeth were. Proximal end is to the right. 5 Link to comment Share on other sites More sharing options...
Rockwood Posted February 10, 2020 Share Posted February 10, 2020 Here is the operational form. 3 Link to comment Share on other sites More sharing options...
Troodon Posted February 10, 2020 Share Posted February 10, 2020 This might further help explain what you are seeing. @minnbuckeye Here is an Edmontosaurus jaw section from my collection with the upper jaw and teeth (Blue) fused to the lower jaw teeth. The lower teeth have a protective sheath covering all the teeth except those making contact with the uppers. Its partially missing in my jaw. What you see in the first photos is a section of lowers with full teeth. The third photo are the lowers but looks like its cut in half only exposing the roots and partial teeth Here is a side view showing the tooth batteries with the roots with the orange line very roughly what missing in the 3rd photo Here is a single tooth and root 8 Link to comment Share on other sites More sharing options...
jpc Posted February 10, 2020 Share Posted February 10, 2020 That is a great find, Bedrock. Worth looking for the source,THEN opening a quarry. The source, in the Hell Creek and Lance, can be very tough to find. 2 Link to comment Share on other sites More sharing options...
Bedrock Posted February 10, 2020 Author Share Posted February 10, 2020 7 hours ago, jpc said: That is a great find, Bedrock. Worth looking for the source,THEN opening a quarry. The source, in the Hell Creek and Lance, can be very tough to find. Thanks JPC, I'll have to pass on opening a quarry! I really appreciate everyone taking time to educate me today, I had suspected this dentary was from a Hadrosaur but I'm a weekend warrior and green. I've recovered everything I could find from this site, a few hundred pounds of loose fossils, some partially encased in rock. I surmised this was originally a large glacial till cliff boulder that had rolled across the stream bed and broke up, it was covered over with several feet of sediment. Stream erosion trailed bread crumb fragments making it easy to track the deposit. This find was on private land and removed with permission. 2 Link to comment Share on other sites More sharing options...
minnbuckeye Posted February 10, 2020 Share Posted February 10, 2020 Thanks for the anatomy lesson! I have a better grasp of the posted teeth!! Link to comment Share on other sites More sharing options...
Shamalama Posted February 10, 2020 Share Posted February 10, 2020 9 hours ago, Troodon said: What you see in the first photos is a section of lowers with full teeth. The third photo are the lowers but looks like its cut in half only exposing the roots and partial teeth 11 minutes ago, minnbuckeye said: Thanks for the anatomy lesson! I have a better grasp of the posted teeth!! Agreed, thank you for explaining @Troodon. Still a very cool specimen. -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
Bedrock Posted February 13, 2020 Author Share Posted February 13, 2020 On 2/9/2020 at 4:45 PM, Rockwood said: I hope you can find a crew this could require opening a quarry. I have more that I may post after I see what can be mated, there are also a few fragments that appear to be skin. I'm posting a pic of the opposite side of the Dentary from above, I couldn't add it before due to file size limitation. Size 9"x4" 1 Link to comment Share on other sites More sharing options...
jpc Posted February 13, 2020 Share Posted February 13, 2020 skin? Link to comment Share on other sites More sharing options...
Bedrock Posted February 23, 2022 Author Share Posted February 23, 2022 (edited) Posting to a new thread Edited February 23, 2022 by Bedrock Posting to a new thread Link to comment Share on other sites More sharing options...
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