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Showing results for tags 'cedar valley formation'.
Found 7 results
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Is This Crinoid Worth Further Professional Prepping?????
minnbuckeye posted a topic in General Fossil Discussion
Six weeks ago, I found this crinoid stem with a broken calyx peeking out of the matrix. Today, I used a Dremel to expose more of the stem . As I look at the specimen after cleaning it a bit, I now am wondering if there might be a slight chance of anything substantial hiding in the rock that might be worth a professional prepper going at. Your thoughts will allow me to make a decision. Thanks for any advice. Mike -
This past Sunday, I had about 2 hours to spare, and wanted to look for fossils. I obviously couldn’t go far, so I decided to see whether I might have any luck fossil hunting along the Iowa River right in Iowa City. The exposure there is from the Coralville Member of the Cedar Valley Formation, which is mostly Devonian limestone and Dolomite. The faunal diversity in this strata is not great - some solitary and colonial corals, a smattering of brachiopods and bryozoans, and a few small crinoidal columnals. I had time to check out two locations very near downtown Iowa City, and both within two mi
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Greetings! I went on a quick (~60 minute) hunt today on the Iowa River in Iowa City, Iowa. The rocks there are from the Coralville Group of the Cedar Valley Formation (Devonian), mostly limestone and dolomite. I hope to post a brief summary in the Trips forum soon. I didn't find much, but one thing I did get is a large spirifer of some sort. I'm excited about it because it contains both valves, with pretty good preservation of the entire ventral valve and good preservation of one "wing" of the dorsal valve. It measures about 10 cm from tip to tip (sounds better than from cardinal extremity to
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Here is a piece I saved on a recent excursion to the Devonian Cedar Valley Formation of Iowa. It looks like a thumbtack!!! I am guessing a tentaculites abutting an ostrocod, but would like other opinions. Thanks, Mike
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This gastropod was collected about a month ago in Coralville Iowa from the Cedar Valley Formation of the Devonian. I have pieced it and puttied it back together. My attempts at IDing have failed. I don't think it is a maclurite. Any experts on the Devonian life of Iowa out there??
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Does anyone know what species of Platyceras have been found in the Cedar Valley Formation/Devonian of Iowa??
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I collect in Coralville Iowa frequently and always run across these brachiopods. Yet I am unsure of their name in spite of investigation on line. They are NOT uncommon so the ID should be easy but eludes me. So here I am asking for assistance! They are flat as a pancake if that helps.
