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A Quick Visit To A Couple Road Cuts Near Oglesby, Illinois
Nimravis posted a topic in Fossil Hunting Trips
I was bored this morning so I decided to take a quick 70 mile drive to an area close to the Illinois State Park- Starved Rock. The road cuts are not to far from the former Lonestar Quarry in Oglesby that contains limestone from the Pennsylvanian Bond and Mattoon formations. When this quarry was accessible, brachiopods, nautiloids, ammonoids, crinoid (stems / cups), bryozoans, horn coral, trilobite pieces and shark teeth. At the road cuts, I was hoping for some of the same. (If you see that I identified something incorrectly, please advise). My first stop was along Route 71. I was able to collect on both sides of the road. The most abundant fossil that I found was the brachiopod "Composita argentia". If I was in the quarry, I could literally pick of hundreds of these in no time at all, but at this road cut I found about 20. I also found a couple of what I believe to be the brachiopod "Juresania nebrascensis". 1 piece of horn coral "Lophophillidum proliferum". 1 brachiopod which I believe to be "Punctospirifer kentuckyensis". A couple small crinoid stems and 1 small crinoid hash plate, which was not worth the taking, but I did. The second road cut was about 5 minutes down the road on Route 62. Unlike the first site, this area is very unstable and caution needs to be the first thing that you practice here; I would not suggest this are for smaller kids and people who are not sure-footed as the approach is steep, littered with loose rocks and the head wall is not secure. The matrix at this location appeared to be different and I did not find 1 of the common "Composita argentia". The most common at this site was the brachiopod that I believe to be "Juresania nebrascensis". A couple brachiopods that I believe are "Linoproductus cora". A few Spirifer brachiopods. And laslty- a couple crinoid stems. It was not a great haul and I do not think that I will be visiting either site again, but is was a great weather and what else is better than fossil collecting. Hope you enjoyed this report and again, please correct any mistakes that I most likely made.- 20 replies
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