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After finding this piece of matrix while traveling to Ohio, I decided it needed a little prepping. It turned out to be a keeper after 3 hours of work on it! By the way, I adore matrix pieces!! The brachiopods are either Lepidocyclus periamellosum or Hiscobeccus capax. I can't differentiate the 2 species apart. But some major insult had to happen to preserve over 30 of these brachiopods as seen on a relatively small piece of matrix.
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Found Equipment someone lost at St Leon, Indiana
minnbuckeye posted a topic in General Fossil Discussion
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I went to St Leon Indiana, and I had a pretty good haul!!! Spent the day out there I have several fossils that are from the Ordovician time period and they’re in limestone, limestone shale. Does anyone have any good tips on washing them? Do you prefer dry? Just with a brush? What about any rusted stuff, do you use oxalic oxide? What about algae? Do you prefer water? Soap and water? Hydrogen peroxide? I’m afraid and don’t want to ruin any. Thank you! Jessica
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Last weekend I finally made my way up to the famous St. Leon road cut. Also known as South Gate Hill in some literature. I made the 2.5 hour drive to Lawrenceburg Indiana after work last Friday and stayed overnight so that I could be up with the sun and on my way Saturday morning. The site itself is another 20-30 minutes from the hotel. By 6am I was out the door and on the road. After a quick gas station stop I found myself at the mile long road cut. Most people come here to hunt in the butter shale of the exposed Liberty Formation for Flexicalymene rollers. I was no exception. Trilobites are not common in my immediate area so they were top on my list of things to find here. The butter shale is easy to spot. A creamy light gray layer exposed at the top of the second tier. I made my way there and following the advice of @Nimravis (Who sadly couldn’t make the trip to hunt with me. Missed you Ralph!) I got down on my hands and knees and put my nose to the ground. Most of the trilobites found here are quite small. The ones that I found were maybe a centimeter. I was lucky enough to come away with 2 complete rollers and 1 that was complete minus a bit of damage to the cephalon. Plus other trilo-bits. Including the usual Isotelus chunks found throughout the Ordovician of the area. A pile of Isotelus fragments. After I adjusted my focus away from trilobites I was able to see that the site had plenty more on offer. Brachiopods are everywhere here. I’ll let the pictures speak for themselves. Sorry for the lack of scale. The plastic ruler in the below picture fell out of my pocket very early in the day. I never found it. I can provide estimated sizes if requested, and will certainly have scale in the photos of the specimens I took home. This block was about a meter long. I found some nice examples of horn coral here too. Orthoconic nautiloids can be found here as well. Those were all the pictures I took from the field. All the ones worth sharing anyway. I stayed till after lunch, but all the climbing around and lack of food (forgot my packed lunch at the hotel )forced me away. After a bite to eat I also hit up a road cut in Lawrenceburg that I had read about. It was only 5 minutes from the hotel so I decided to check it out. The exposure was impressive in size, but not nearly as fossiliferous as St. Leon. Mainly consisting of Strophomenid brachiopods and some chunky bryozoans. Still I came away with a few finds and was glad that I took the time to look it over. The St. Leon road cut lived up to the hype and was well worth the visit. I definitely will be back. I’ve been short on time this week and haven’t gotten my finds that I brought home cleaned up enough for their photo shoot, but I plan on adding pictures of them as soon as I can as there was much more to see than pictured here. I also had plans to drive over to the AA highway, but I ended up having to head home earlier than expected. Oh well… Maybe that will be my next trip worthy of a report.
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Sample was found in the Liberty formation in the well-known St. Leon roadcut in southeastern Indiana. Sample measures 70.0 x 38.3 millimeters. Monticules are not star-shaped.
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I found this in St. Leon, IN, Waynesville formation, and was just wondering if it was an orthocone fragment or something else. Thanks!
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Last month I took a weekend collecting trip down to the Cincinnati area as my last trip of the year. I visited a number of sites in Indiana and Kentucky, and as usual this included the famous Upper Ordovician roadcut near St. Leon, Indiana. Although this site is best known for its trilobites, I found a great crinoid on my last trip there, and had some further crinoid luck on this trip as well. I spent most of my time in and around the butter shale bed of the Liberty Formation, shown below. The find of the day came when I noticed a large accumulation of crinoid stem fragments. It's always a good idea to look around for calyxes when you see a lot of stems like this. As I looked closer, I started to notice a couple calyxes. Then more, and more, and more.
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Today on my way back home I spent a couple hours collecting on the mile long Ordovician roadcut of St. Leon, Indiana. I believe this roadcut exposes the portions of the Saluda and Lower Whitewater formations as well as the entire Liberty and Waynesville formations. No matter how many people collect at this site, there are always fossils to be found. Here are some pictures of the area.
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Here is another specimen from the Southgate Hill road cut near St. Leon, Indiana. So it is Richmondian, Cincinnatian, Late Ordovician in age, Upper Arnheim, Waynesville, or Liberty Formations found in a rock with multiple Strophomena planumbona, lots of tiny ramose bryozoan fragments and some crinoid columnals. At first I thought it was an echinoderm of some ilk, but now I'm leaning towards a fragment of the bivalve Caritodens welchi like the one Ralph @Nimravisposted in this thread : The bit I have is about a centimetre long and 1.5 mm wide. Thank you, as always, for any suggestions. N.B. This specimen was also sent to me by Ralph. Thanks again, my friend. @erose @connorp Thanks, everyone.
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Hello, once again, my friends. Another puzzle from the Southgate Hill road cutting near St. Leon, Indiana. It will be Cincinnatian, Late Ordovician in age from the Waynesville or Liberty or Formations. The rock it is in also contains Strophomena planumbona, Eochonetes clarksvillensis, Zygospira modesta and Bythopora deliculata. The shape and growth lines seem to me like the inarticulate brachiopod Pseudolingula, but the 'ribs' and 'tubercles' wouldn't fir this. Looking more closely it seems to have a bryozoan structure, so is it a brachiopod covered in an encrusting bryozoan? Or just a weird bryozoan? My other thought is some sort of trilobit, a hypostome, maybe? Also bryozoan covered? Any of your opinions will be gratefully received. Thank you It is 4 mm wide. Here it is with a tiny Zygospira modesta : And as close as I can get : Each 'level' gets progressively higher but the total height of the specimen can't be much more than a mm.
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Over the weekend I found this bivalve while collecting at the St. Leon, Indiana roadcut. I posted it in the Hunting Trip section, but received no ID on this piece, so I figured that I would put it here to see if some Member could give me an ID. I have never found one like this before nor can I find a similar one while checking various web pages. Thanks
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Finally made it out to St. Leon, IN while visiting my girlfriend's family in rural Indiana. Here are some cool specimens I found (lots of brachiopods):
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Here are a few small bits from the Cincinnatian (Upper Ordovician) roadcut near St Leon, IN, that I’m not sure of the IDs. They were all collected from the butter shale trilobite layer of the Liberty Formation. First is what I think may be part of a crinoid? Not positive. Next, I have no idea. Maybe part of a crinoid. A fragment of a conulariid also crossed my mind. Here is a small brachiopod that I picked up thinking it was Zygospira but is definitely not. I’m guessing this trilobit is Flexicalymene, but I know a few other species of trilobites are found here so I wanted to check.
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Since there was no Fossil Garage Sale this weekend I decided to drive 4 1/2 hours down to Brookville and St. Leon, Indiana on Friday to do a little collecting at both sites and then headed back home on Saturday week. I was a quick trip and I hit both sites on each day. On Friday it was about 70 degrees, but poured in the afternoon while I was at a Brookville road cut and on Saturday morning it was a brisk 37 degrees and I forgot to check the "Feels like" temp. The cut is very steep and prior to the rain it was very dry and there were numerous times when I lost my fitting and slid down at least 5 feet each time. This was the first time that I had visited this site and I was reminded of it by @stats Rich when I saw him last week at the garage sale, though I did not go to the cut that he goes too. With this report I am going to keep it short and just show a couple of my finds, but I did find a lot of stuff. I found a lot of larger, loose Rafinesquina, and I believe that this is one, but I never have found one shaped like this big boy. I found a lot of Cyclonema snails and as many that were just the internal mold, some are pictured in the Right side pic. The top internal mold in the below picture is a Monoplacophoran. I think that I found about 20 Ambonychia pelecypods, here are some below. Here is a piece with an Ambonychia (Top Left) and a Caritodens (Bottom Right) pelecypods. I found several other pieces of Caritodens,here is one below. I only found 1 partial trilobite at the Brookville site. I found a number of loose Leptaena brachiopods and a few plates with many. I found several Vinlandostrophia brachiopods. I thinks that these are all Hebertella, but I could be wrong, there are so many brachs that look the same to me. Ans I found a few cool hash plates, here is one below. At St. Leon I only found 3 very small Flexicalymene trilobites, here is one below. I found this large piece of an Isotelus trilobite. Post to cont-
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I made my first trip to the massive Ordovician roadcut near St. Leon IN yesterday. Had a good time. One question I had was about the different formations present there. If I understand correctly, most of the Richmond Group is exposed there, and bottom to top is the Waynesville, Liberty, and Whitewater formations. I really couldn't make out any clear divisions in the exposed rock though. From what I've read, the butter shale trilobite layer is the Liberty formation. I spent most of my time collecting on the second terrace, which appeared to be made at the top of the butter shale layer. So that would be the Liberty formation? I also collected some hash plates on the way down, which I suppose could have been either Liberty of Waynesville, but also could have been scree from any place in the roadcut. Should I label my finds as just coming from the Richmond Group and not worry about which specific formation?
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I recently was able to stop at the well known ordovician roadcut just north of St Leon in Indiana. What a wonder. I was able to be there only an hour, but it was fascinating. I was able to find these nice brachipods, but would like to label them correctly and so far books haven't helped me...I thought perhaps someone would be familiar with the brachiapods from that road cut and help me out. thanks. the people on this site are always helpful, and knowledgeable and so it is exciting to be a part of it all. The Brachiapod labeled 6, a,b,c are obviously three different views of the little guy. the coin for size in the edge of the photos is a dime. This brachiapod is so cool, one can see the opening edge between the two halves..so cool.
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Recently, we made our first trip to St. Leon roadcut in southeast Indiana with my kids and father. Thought I'd put together a report of the trip and show the various items found. I've tried to make my best effort at IDing the brachiopods from the drydredger website, but please let me know which ones are incorrect. Here's some pictures from the location.
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