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Showing results for tags 'burlington limestone'.
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Greetings, all! I am currently writing a thesis involving fossils from the Burlington Limestone near its type section along the Illinois/Iowa border. To demonstrate the diversity of the crinoidal remains from the limestone (over 400 species have been described from the Burlington alone!), I am looking for photographs of articulated crinoids. Do any of you have any that you would like to let me include in my thesis? If possible, I would like high-res images of crinoids identified to genus or species with a scale bar/ruler present in the image as well as the collection/locality info. I can't guarantee that I will use every image posted, but if I use your image, then I will acknowledge you in my acknowledgements and give you credit for the image. Thank you for your time & assistance! -Elasmohunter
Here is another Mississippian shark tooth that I need some ID help with. I am still waiting for a bit of information from the seller but I am pretty sure this is a Burlington Limestone tooth from the Biggsville Quarry, IL. I had asked the seller if he had any Venustodus teeth and he sent me a few pictures of this one. It looks similar to other venustodus teeth I saw as I researched this but it looks a little different from others that had the same ID. It certainly seems to be a really nice tooth and one the kids would like learning about ! My gut says this is probably what I am looking for and the sellers ID is correct. I do not fully trust my gut with Mississippian shark teeth though lol So I thought it best to put this to the forum and see what my fellow TFF members think. Any thoughts on this one ??
This was discovered while hunting in the Burlington Limestone in no other than Burlington, Ia. If anyone has hunted this formation, they would know 90% of the rock is made up of light colored crinoidal debris. Occasionally a brachiopod s encountered and they may be darker than the crinoids, but pale against this. I know there is a fish layer in the Burlington and am hoping that this may be the ID.