fossilized6s Posted August 15, 2018 Share Posted August 15, 2018 I took my 4 year old Son geode and fossil hunting near the Missouri, Iowa, Illinois borders last weekend. We had a blast and found a lot of cool stuff. I found this calyx in the Warsaw formation which is Mississippian. It's obviously not done being prepped, but i figured there might be enough showing to get your opinions. It's actually been quite a challenging prep and may take some time to finish. I was thinking a possible Agaricocrinus sp., but it doesn't quite fit the bill. I can't find anything that looks identical. Any help is appreciated. @crinus @Crinoid Queen you guys still around? As found Some prep 3 ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
Rockwood Posted August 15, 2018 Share Posted August 15, 2018 Is this a common form of preservation in that area ? I wouldn't have recognized it as crinoid. 1 Link to comment Share on other sites More sharing options...
ynot Posted August 15, 2018 Share Posted August 15, 2018 It looks like a distortion caused by the "geodization" process. The distortion may make an ID very hard. 1 Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
fossilized6s Posted August 15, 2018 Author Share Posted August 15, 2018 6 hours ago, Rockwood said: Is this a common form of preservation in that area ? I wouldn't have recognized it as crinoid. This was my first time hunting that area. It's all typical limestone preservation. 1 hour ago, ynot said: It looks like a distortion caused by the "geodization" process. The distortion may make an ID very hard. Not sure it's "geodized", but definitely harder than the surrounding limestone. I know there's a term for it, but i don't remember. Haha "Siliconized".......? ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
ynot Posted August 15, 2018 Share Posted August 15, 2018 5 minutes ago, fossilized6s said: Not sure it's "geodized", but definitely harder than the surrounding limestone. I know there's a term for it, but i don't remember. Silicified. The process that creates the geodized fossils is also what causes the silicification of the fossils. The area that is mentioned in Your post is known for geodized fossils, they are called "midwestern sedimentary type geodes". Not to say that all formations in that area are distorted geodized fossil formations. 3 Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
fossilized6s Posted August 15, 2018 Author Share Posted August 15, 2018 1 hour ago, ynot said: Silicified. The process that creates the geodized fossils is also what causes the silicification of the fossils. The area that is mentioned in Your post is known for geodized fossils, they are called "midwestern sedimentary type geodes". Not to say that all formations in that area are distorted geodized fossil formations. Thanks. That's the word i was looking for. Yeah we originally went there for geodes, but there also a lot if fossils as well. Surprisingly we found very few geodized fossils. And 99% were preserved pretty well, without distortion. ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
Xiphactinus Posted August 15, 2018 Share Posted August 15, 2018 That looks to be Agaricocrinus. They are common in both the Warsaw and Burlington formations from the area you were hunting. Nice! 1 Link to comment Share on other sites More sharing options...
fossilized6s Posted August 15, 2018 Author Share Posted August 15, 2018 6 hours ago, Xiphactinus said: That looks to be Agaricocrinus. They are common in both the Warsaw and Burlington formations from the area you were hunting. Nice! Thank you for your input, sir. I can't find an example of Agaricocrinus with these large "bumps"on the sides. Do you know of a good reference? ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
Xiphactinus Posted August 16, 2018 Share Posted August 16, 2018 Here’s an image from Index Fossils of North America. There are several species but you can see the general shape. 4 Link to comment Share on other sites More sharing options...
crinus Posted August 16, 2018 Share Posted August 16, 2018 I think what you have there is some type of Dorycrinus. The "bumps" are probably the remains of the spines that would be typically be on the tegmen of the calyx. Joe 2 Link to comment Share on other sites More sharing options...
abyssunder Posted August 16, 2018 Share Posted August 16, 2018 1 hour ago, crinus said: I think what you have there is some type of Dorycrinus. The "bumps" are probably the remains of the spines that would be typically be on the tegmen of the calyx. Joe I agree! That would be close. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
fossilized6s Posted August 16, 2018 Author Share Posted August 16, 2018 2 hours ago, crinus said: I think what you have there is some type of Dorycrinus. The "bumps" are probably the remains of the spines that would be typically be on the tegmen of the calyx. Joe Thanks, Joe. I knew you would know. Hopefully next time i can find a more complete specimen. ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
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