Buteo Posted April 15, 2021 Share Posted April 15, 2021 If someone could identify what type of ( white weird shape rock) this is would be great, no info. The vertebra is from Montana according to memory, any idea species ? Sorry for lack of details Link to comment Share on other sites More sharing options...
Myrmica Posted April 15, 2021 Share Posted April 15, 2021 The white-coated specimen looks to be a classic flint (or chert) nodule. You can see the conchoidal fracture on the broken surfaces. These come in all sorts of shapes and often resemble something fossiliferous but that is coincidental. 4 Link to comment Share on other sites More sharing options...
Buteo Posted April 15, 2021 Author Share Posted April 15, 2021 Thank you very much. Link to comment Share on other sites More sharing options...
val horn Posted April 15, 2021 Share Posted April 15, 2021 the left hand piece is a rock, a flint or some rock like it. The second is bone and is a vertebrae. More pictures, and location would be appreciated Link to comment Share on other sites More sharing options...
Buteo Posted April 15, 2021 Author Share Posted April 15, 2021 (edited) Please see attached, Montana is all I have and Im only about 80% sure as that is what the seller specialized in. These were purchased a long time ago and when I moved the paper tags got lost. The paw in first photo is common house cat im sure Edited April 15, 2021 by Buteo Cat id Link to comment Share on other sites More sharing options...
Haravex Posted April 16, 2021 Share Posted April 16, 2021 Unfortunately I have not had the chance to handle many of these but I believe it to be a ceratopsian caudal vertebrae, if it's from Montana likely formations its from is Judith river, Two medicine or Hell creek formation. @Troodon Might be a bit more versered in the preservation and perhaps lend a better identification. 1 Link to comment Share on other sites More sharing options...
Buteo Posted April 16, 2021 Author Share Posted April 16, 2021 4 hours ago, Haravex said: Unfortunately I have not had the chance to handle many of these but I believe it to be a ceratopsian caudal vertebrae, if it's from Montana likely formations its from is Judith river, Two medicine or Hell creek formation. @Troodon Might be a bit more versered in the preservation and perhaps lend a better identification. Thank you for sharing your knowledge, I appreciate it Link to comment Share on other sites More sharing options...
Troodon Posted April 16, 2021 Share Posted April 16, 2021 I believe the centrum is hadrosaurid. The color/preservation is typical of what you see in the Hell Creek Formation but that does not guarantee its from there. The other is geologic 1 Link to comment Share on other sites More sharing options...
Buteo Posted April 16, 2021 Author Share Posted April 16, 2021 Thank you Troodon Link to comment Share on other sites More sharing options...
jpc Posted April 16, 2021 Share Posted April 16, 2021 I agree... hadrosaur centrum, from the tail. 1 Link to comment Share on other sites More sharing options...
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