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Showing results for tags 'ordovician'.
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Here's something I've been trying to ID for a while. At first I thought it was a conodont, but all my research has so far indicated that it's too big to be one, and I don't really know what else it could be, or if it's even a fossil at all. Any input is highly appreciated
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Ordovician, Nicolet River Formation, Crinoid columnal segments
Denis Arcand posted a gallery image in Member Collections
From the album: Fossil Art
These crinoid segments look amazing in their natural color -
I recently got this trilobite and don't know the genus. I think it is from the Order Harpetida. The listing said it is from the El Kisan formation, but I can't find any formation called the El Kisan formation. If that formation doesn't exist I think it's from the Fezouta Formation. It was found in Zagora, Morocco and is Ordovician in age. I haven't seen anything similar and it might be undescribed, but that's just speculation. It is 0.9 cm long.
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New fossil assemblages from the Early Ordovician Fezouata Biota. (Taichoute, Morroco)
Oxytropidoceras posted a topic in Fossil News
Fossil site reveals giant arthropods dominated the seas 470 million years ago by University of Exeter, PhysOrg, December 13, 2022 The Open access paper is: Saleh, F., Vaucher, R., VidalL, M., EL Hariri, K., Laibl, L., Daley, A., Gutiérrez-Marco, J.C., Candela, Y., Harper, D., Ortega-Hernández, J. and Ma, X., 2022. New fossil assemblages from the Early Ordovician Fezouata Biota. Scientific Reports vol. 12, Article number: 20773 (2022) Yours, Paul H.- 2 replies
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- bou izargane
- euarthropods
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Here are a few trilobites, damaged and partials that were found this summer. After cleaning these up over the last few days, I still am unsure of their identities. The first one I will venture is an Isotelus roller. Rollers always confuse me! It is from the Maquoketa/Ordovician and Isotelus are common. @Kane, @piranha 3. is also from the Maquoketa/Ordovician. Maybe not enough present to tell. The rest are from the Platteville/ Ordovician. 4. Popped out of the matrix during prep. It measures 2.5cm by 2.0cm. I count 9 thoracic segments. This is the back side showing a probable pygidium. Interestingly, the depression in front of the pygidium has a positive to it (saved) which makes me wonder whether it could be a hypostome. I will research further once I can identify the species, or at least genus. 2. Is a smaller trilobite, 2cm by 1.5cm and contains 8 visible thoracic segments, though the end is not complete. 5. This specimen is the real reason that the post was created. It has me completely stumped. Unfortunately a piece is missing. I did not see this in the rock until I began processing a different fossil. Hence the other piece is back at the roadcut that this was found at. Anyways, I suspect but not convinced it is a trilobite. The green dots in the first picture show the fractured area. The dark fuzzy area delineated by the red dots is perpendicular to the fractured face. It was hidden in rock until the Dremel exposed it, The exposed surface is very rough compared to other trilobites I have found. Because of this I was hoping to have a better understanding of what is within this rock before prepping further. Here is what I envision as a possibility Thanks for taking a look!
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Happy new year! I wanted to show some of the highlights of an unexpected discovery from December 31 last year. I was in my garage when I noticed a pail full of rocks so I decided to try my luck and see what I could find. While I expected to find a crinoid stem at best, about 75% of the rocks ended up having something or another in it! 38 rocks in all ended up being relocated to my room, some have just a few brachiopods or whatever, but some I only have the slightest idea what they are, so any suggestions are much appreciated. Unfortunately I have no idea where any of these came from so there's not much info I can give regarding location. Pic 1 represents some crinoid stems that have really nice depth, better than any others I've gotten. Pic 2 is a collection of what seems to be crinoids and brachiopods, but more cleaning will be needed. Pic 3 is where things get interesting. You can see these shapes which kinda resemble leaves or fish. One of them in the middle, even has a line going down the length of it that is pretty even, if that helps with ID. Pics 4-5 are this really small shape in a collection of crinoid stems that looks to me like some kind of graptolite, though I haven't yet found any genera that match it. Pics 6-7 have this straight ridge which may just be part of the rock, but at the some time looks a bit like a trace fossil of a worm's burrow or something. Pic 8 I originally thought was just another crinoid, but there are these marks in the middle which aren't like anything I've ever seen. My sister thinks they're eggs but I'm not quite convinced. Pics 9-14 has a lot of pictures because I found it hard to get a decent photo because of its size. The thing I'm mainly looking at is the long rectangular thing in the middle, which while I can't find much that resembles it, looks like it might be a eurypterid arm. Those were some of the key finds from this pail of rocks, I will of course update if I find anything else noteworthy. In the meantime, I'd appreciate any suggestions on what some of these could be!
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A post was made a few weeks ago showing the Decorah Shale finds during my last fossil hunt of the year. During that trip, a section of Stewartville/Galena/Ordovician was visited too and I just finished processing my finds. In the bucket were a few unknowns that I am hoping to make known!!! 1. My guess is likely correct for this one. Beekite? I notice on the picture that that a piece of Isotelus trilobite is peeking out in the lower left corner and is probably the reason for the beekite formation. I have searched through Galena countless times and have not run into this before. 2. This one has a distinct ridge running down it and has more subtle ridges running perpendicular to the central ridge. They are difficult to see in the photo. 3. This small almost circular fossil (4mm) has a peculiar ridge down its center. 4. Finally, this "cross" measures 8 mm. It does not appear to have characteristic of a bryozoan on its surface. If it is part of a deeper fossil, I was wanting to know what it was before I explore further with my Dremel.
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Locally, graptolites are very common in the Maquoketa/ Ordovician rock. They present themselves as 2 dimensional creatures on certain bedding planes. Below the Maquoketa is our Galena. It has graptolites but uncommon. Again, they present themselves as 2 dimensional. The "unknown" specimen from the Galena, presented today, is obviously 3 dimensional and I venture a guess that it is a Graptolite. But I thought I would seek opinions in that I have seen thousands of local graptolites but never one that is 3 dimensional. Could it be something else??
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- fillmore county
- galena
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Hi, I live in Knoxville, TN. I’ve always been interested in fossils; when I was about 12, my sister and I found some large cephalopod fossils in the limestone shale on the bank of the Tennessee River. I pretty much look for fossils in any rocks I see! I also enjoy looking for different minerals.
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I spent some time today examining this little Triarthrus specimen when I noticed what may be a preserved eye. This one was found in between pieces of shale, so the first 2 pictures are from one side while the last 2 are the other. I've seen other Triarthrus fossils that have eyes in the same place so I do think it may be one. Are trilobite eyes a common part of fossilization?
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Hello all. I recently engaged in my first fossil hunting expedition at the Caesar Creek Spillway in the Cincinnati region of Ohio. While most of what I collected I was able to (probably) positively identify as various Ordovician fauna, one specimen has stumped my lay understanding. I believe it to be a partial fossil, about 2.5cm by 1cm, apparently ovular in cross-section with fairly clear segmentation. From some image comparison I've done I was initially leaning towards it being a partial Cephalopod, however what I'm interpreting as a waisted section at one end is throwing me off. I'm not sure if is actual waisting or if it is just occlusion of the fossil by the surrounding material. Any and all insight is greatly appreciated!
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Finally got around to joining up. Been collecting since second grade, and that was 67 years ago. Have some IDs needed, but will also start a gallery as time permits. Primary interest at the moment is Tennessee, USA Devonian as moniker announces. In general, HELLO!
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It was a beautiful, warm (almost 50 degrees!), sunny Halloween day in Minnesota when Kris and I went fossil hunting together. I took her to the BEST gastropod site in Minnesota! She loves the snails too. :-D Age is Ordovician and we were in the Stewartville member of the Galena Formation for both sites collected. Kris at site one pointing to gastropods stuck in the rock. Hormatomas stuck in the rock. We didn't go a 1,000 yards and her pail and my backpack were full of great finds. And I got these pics of those we could not take. Maclurites reverse cast. Imprint of a cephalopod. I took her to one of my favorite spots to just hunt in peace and quiet. So many fossils trapped in the bedrock! This site never ceases to put me in awe of how the earth has changed through the millennia. A shame I didn't take more pictures, but I had not planned on posting the hunt. But @minnbuckeye inspired me to do so with his "Last Hunt of the Year". :-) My haul, and Kris had a more impressive collection that I didn't get a pic of. I had just gotten a stunning calcite lamp from Niagara Cave - my favorite place to buy non-local fossils and rocks! :-D - and put my finds around it on the kitchen table. They are still there and the lamp is a gorgeous night/accent light in my kitchen. I hope you enjoyed this "postcard" from southeastern Minnesota, the northern tip of the Great Driftless Area on the North American continent. :-D
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- galena formation
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Day Two ; Locality One (or Six if you include Day One) Black Sahara, South of Erfoud 20th February 2019 Well this is where things really get interesting, so stick with this thread as there are dozens of photos of fossils coming up. Looks at the tags if you want clues. I was up bright and early and wandered out at about 7 am to watch the sun rise over the still mighty Erg Chebbi dunes. And as night's candles were burnt out and jocund day stood tiptoe over the misty duney tops, the chaps came to join me and managed lots of photos. Here's one, if you would like to see more, I'm busy posting a kazillion of 'em under the Nature Photography thread.
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Are my fossiles genuine or fake?
buraqing34 posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello, im new in fossiles collecting, absolute new beginner. I wonder if my fossiles are genuine or fake, i was so proud of my collection but after i learned that there are many fake Moroccan trilobites on sale, i had suspicions. There are some holes in trilobite and some stuff on it, could be glued which is fine because its age matters to me most, it could be glued no problem. I put them under a plastic sheet but if you wish i can take them out to take better pictures.
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Hi everyone! I purchased this trilobite mortality plate a few months ago, but I haven't gotten the chance to get an ID yet. All the info I have on it is that it was collected near Tafraoute, Morocco and is from an Ordovician formation. (not sure which one) They are all about an inch and unfortunately most of the heads are not preserved great. I can provide bette r pictures if needed. Thanks!
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Here are some of the most intact trilobite fragments I've collected from breaking apart shale. Pic 1 is very well preserved though I do wish there could have been more of it. Pic 2 may have some of the best 3-D nature to it, especially where you can see both sides. Pic 3 looks really awesome in my opinion, but what really sells this one for me is what I suspect to be a horseshoe crab in the bottom middle, though additional input is much appreciated. Pic 4 is the first one I found from shale. Pic 5 is the first trilobite I ever found on my first fossil hunting expedition in the summer so it really holds a special place in my heart. It is just one part of a large rock that has a lot of stuff in it from crinoid stems to brachiopods, I could honestly make a whole post just about that one rock. And there are some of my best finds from shale! I only started finding it on my last expedition before it got too cold, but I'm already anxiously waiting for it to get warm again so I can hopefully find more, I still have fingers crossed I'll find a full trilobite!
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Few weeks ago started breaking open some pieces of shale. I've found lots of trilobite fragments that I'll post later, but what's intriguing me is these small bits of things that I find quite a lot. I can't find anything on what they might be and my closest guess is perhaps some bits of crinoids? Does anyone have more experience than me with such things?
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Unfortunatly this is is a piece found at the outcrop bottom, no opposite mould available. Important: this is a DECALCIFIED specimen, so you see the calcified part negative. Ordovician, scale bar 5mm. 2 pics of the same specimen. Any ideas? Echinoderm? Porifera? Bryozoan?...
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Ordovician opabiniid-like animal from Welsh Sheep Field (United Kingdom)
Oxytropidoceras posted a topic in Fossil News
Scientists Just Uncovered Fossils Of An Unknown Prehistoric Creature In A Welsh Sheep Field By Kaleena Fraga. Alls that Interesting, November 23, 2022 Fossils found in Powys sheep field by researchers BBC News, November 16, 2022 Welsh 'weird wonder' fossils add piece to puzzle of arthropod evolution ScienceDaily, November 15, 2022 The open access paper is Stephen Pates, Joseph P. Botting, Lucy A. Muir, Joanna M. Wolfe. Ordovician opabiniid-like animals and the role of the proboscis in euarthropod head evolution. Nature Communications, 2022; 13 (1) DOI: 10.1038/s41467-022-34204-w Yours, Paul H.- 5 replies
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- castle bank biota
- darriwilian
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I know there aren't many details for a formal identification, but even a guess would be fine I found it in the Nicolet River formation (Late Ordovician)
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Hi Everyone, Last month I took a trip from New York to Elizabethtown, Kentucky to attend my parents' 70th anniversary. My sister and her husband, two of her adult children, and my parents, both in their 90s have all resettled there. I try to visit them at least once per year, but my parents' 70th wedding anniversary could not be missed. It is a very long trip from the suburbs of New York City to E-Town and a stop along the way was the sensible thing to do, so I spent the night in Harrison, Ohio near the border with Indiana and only 15 minutes from St. Leon, the well known Ordovician roadcut. I've been there twice before. It is a huge outcrop, fossiliferous from top to bottom, with plenty to explore. With even a full day it is impossible to do justice to the site. As it was, I spent a half day. Most of you I'm guessing have been to or seen pictures of the roadcut. Here's a couple anyway:
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- bivalves
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Found this object on a piece of shale. I suspect it might be a crinoid stem but it's really hard to see very much detail as it's so small. There is a trilobite when I split the piece in half in case that helps, though I'm looking for some more experienced eyes to help me out with id, thanks!
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- crinoid
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From the album: Nautiloid’s Trilobite Collection
This is the largest Gravicalymene I’ve collected so far at over 1.25” wide. It required quite a lot of gluing but it should turn out pretty nice when all is said and done! Collected 11/04/2022© Owen Yonkin 2022
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- gravicalymene
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Hey everyone, As you can see here I have a piece of shale I broke in half, which revealed this brachiopod like shape. At first I thought it was dust but what's left here can't be brushed away any more. Looks to me like it's too symmetrical to be a natural formation, but I could use some input at to whether it's a fossil or not, thanks!
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