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Showing results for tags 'urchin'.
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I don't claim to have discovered this. In fact, I found the photo on a Facebook page of an excavator operator that dug it out of the ground (4m depth) near Calgary Alberta. But, as he stated that he had tried to break it open but it was too hard, I urged him to wait until there were a few opinions on whether it may be important. It looks urchin-like and I have never seen one that large. Sorry, but this is the photo from the Facebook page. If more are needed I suppose I could ask for more, but for now this is it. Opinions?
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I have just bought these from a collector and the labels are a little jumbled. I have left them in the section they were in if there is a double set in one and no label in another! I have enough labels to go round a little help with where is needed! I can obviously take more photos if required. There is some beautiful ones in here, I am really pleased with them.
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Hi all! I found this tiny fossil today. It is a bit under half a cm long at its longest point. I can only imagine this is an echinoid but some confirmation would be great! Found in some very fossiliferous rock on the UW Madison campus in Dane County Wisconsin, known for being late Cambrian - early Ordovician. No clue where this rock was quarried. Thanks so much!
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I am on vacation in SW Vermont.. Last evening, I had dinner with my niece and friend. She has an interest in fossils (I gave her many as presents and she has hunted the Peace River a couple of times.) A while ago, her friend was at a Flea Market and from a cardboard box labeled "New York", he got a number of rocks that contained fossils for her. That is all I know....and I am certainly no expert on fossils in rocks from the Northeast.... RockFossil #1 Rock Fossil #2 RockFossil #3 Rock Fossil #4 Rock Fossil #5 Rock Fossil #6 Any and all comments and or suggestions appreciated
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From the album: Holocene
Echinometra mathaei, Maui Holocene May, 2023-
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I found this sea urchin recently and figured I would share it with the forum. Not sure if it's a newly discovered species but it's a pretty nice piece. It looks like it got partly smashed somehow before petrification. It was found just outside the city limits of Uvalde, Tx near a slough that runs into the Leona River. So far I only have one picture to post but I will get a shot of the underside when I find the right lighting.
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Strange Finds from the Austin Ozan. A Test for the Ozan Experts.
Mikrogeophagus posted a topic in Fossil ID
I decided to take a trip to an Ozan spot after some rain a couple weeks ago. The gravel finds were sparse, but I fortunately remembered to bring some of my trusty excavating tools with me from Dallas to Austin. After the trek to the main exposure at this site, I got to scouring the shaly creek bed. In previous trips, I usually didn't spend much time doing this as I had limited tools for digging. With some newly acquired technology by my side, I encountered a facet of this location I hadn't experienced before. A lot of the fossils that preserve in this formation are too fragile to survive once exposed to the elements. I was surprised to see the wide array of species I had been missing out on in the past. Some things were easy to recognize. I came across a chunk of matrix filled with fragments of heart urchins. Not much of it was worth keeping even after I poked and pried my way through it. In the end, I only decided to keep what I think is a long urchin spine (B) with some echinoid bits on the underside. I also found some crustacean parts for the first time in the Ozan (C). I believe I managed to find the scattered remains of what once was a decently sized crab. It's extremely fragile and there appear to be limbs scattered every which way. I got to this ID by spotting a couple of spiny shelled projections poking out at various points. Later cleaning revealed some more. The thing is so destroyed, however, I might give up on it. I also came across what looks like a piece of a crab claw. My most enigmatic find was something I almost overlooked completely. Here and there throughout the exposure were these broad, dark patches of shale (A). I assumed they were flat, but when I accidentally kicked one, a section popped right out of the matrix and revealed its 3D nature. After working out the others parts by it, I noticed that these things had some regularity to them and perhaps were the remnants of an animal or plant or whatever. On both sides of the specimens, there appears to be a darkened indention running down the midline. I also noticed curved lines running across the pieces in a pattern reminding me of the banding found on the shells of baculites. The cross section of these finds appear to just be shale and do not present much information. The pieces start off wide and gradually thin themselves towards one side before ending in a point. I wish I took pictures of them in situ, but I unfortunately only have pics from my room. One specimen had pyritic inclusions which are typical for fossils from this exposure (I've seen pyrite in bones, crustaceans, urchins, oysters, etc.). When I look at them, I start thinking of cephalopods, but that's a big jump. They could be some sort of trace fossil, but that doesn't quite feel right. I don't know if any Ozan experts on here will recognize these, but I am really curious to try and pin down some ID if there is one to be found. To round off the trip, I also came across a horn-shaped coral (D) that I suppose washed down from the Austin Chalk up stream. Some more typical finds (E) were also to be had. It was nice to get back out and enjoy the cool waters of an Austin creek. I won't be sticking around long, however, as I am about to make a couple of trips across Texas for school interview stuff in the near future, so look forward to future posts outside of my usual grounds. Picture: A). Main Enigmatic Finds. This is the bigger piece. It continued under the shale below the unstable wall of the creek. Decided it was dangerous to dig to the end of it. Second piece I brought back. Much smaller, has pyrite, and still partially in the matrix B). Urchin Spine? C). Crustaceans. The top shows the pyritic scattered one. The bottom shows the claw. D). Coral I think washed from the Austin Chalk. E). Typical finds (Goblin Shark teeth on the left and enchodus tooth on the right. Small mosasaur vert on the bottom I think from the Austin Chalk) Thanks for reading! -
Hello, Here are three fossils whose provenance is unknown...but likely somewhere in the US, and possibly Colorado. Does anyone have ideas for more specific IDs and possible provenances for them? Thanks. The first is what appears to be an echinoid, Eupatangus maybe? The second to me looks like a nautiloid steinkern/internal cast: Third is this plate of starfish:
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I just came across these in my storeroom and have no idea what they are, well apart from an urchin of some kind! Any help is appreciated!
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Hello all. I just got back from an open day at a gem and mineral club. I picked up some fossils while I was there. Unfortunately, the mineral guys aren't so knowledgeable on fossils, so many were mislabelled and dont have information on them. I would love it if you guys could help me out. Ammonite from Morocco Two ammonites that come from Chile, I think... And lastly an urchin that came with no information
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From the album: Florida Invertebrates
Arbacia imprcera Pio-Pleistocene Sarasota County-
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Here are some eocene to miocene age urchins I found in Al Ain (part of the United Arab Emirates) near Jebel Hafeet. I would appreciate any id's. Some urchins might be a bit too far gone to identify. (underside)
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Hi, I will be posting a lot of my finds here. I would like to know if I could get a species identification for this conoclypus urchin. It comes from the miocene (I think so because it has nummulites in it) of Al Ain, close to Jebel Hafeet. It's the largest, and most complete one I could find. Unfortunately the bottom is completely gone, still one of my best finds though!
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A rare echinoid originally described by Jean-Baptiste de Lamarck (1816) and identified as Clypeaster hemisphaericus. Found in the Department of Gironde. Lamarck, J.-B. M. de. (1816). Histoire naturelle des animaux sans vertèbres, Tome troisième [in full: Histoire naturelle des animaux sans vertèbres présentant les caractéres généraux et particuliers de ces animaux, leur distribution, leurs classes, leurs familles, leurs genres, et la citation des principales espèces qui s'y rapportent]. [book series]. 586 pp. Paris: Deterville/Verdière. Kroh, A.; Mooi, R. (2021). World Echinoidea Database. Echinolampas hemisphaerica (Lamarck, 1816) †.
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I recently found a bunch of eocene urchins near Jebel Hafeet in Al Ain, United Arab Emirates. Most of them are a peculiar orange colour. The trouble comes when trying to expose the hidden parts of the urchin. When I remove the matrix, I don't see the orange color anymore. There's a grey layer that covers the fossil, which looks exactly like the fossil, but it's on top of the fossil. The matrix pops off of this layer. I don't know how to prepare this. Many of the urchins are only about as thick as a folded piece of paper, so I don't want to mess around too much with vinegar. Any tips?
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Hello, I found these urchins near Jebel Hafeet in Al Ain, United Arab Emirates. I think they come from the eocene, but I am not quite sure. I forgot to add a ruler in the photos, sorry, just know the largest one is just under 4 cm long. I would appreciate any id's. I will also be posting a picture on the fossil preparation section of the forum to see if I can clean them up a bit.
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I found this thing as a 10 year old in France. It is definitely one of my better findings on the flint coast there. I think it's an urchin but I don't have much knowledge about urchin and like fossils. Could anyone help me specifically what it is?
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Hi everyone, Sorry if this is a bit of a basic question, but I'm fairly new at this and seem to be finding conflicting information about what I'm looking for. I recently found a number of fossil urchins, and what I think look like will probably turn out to be shells enclosed in sandstone on a beach. Some are pretty clean and only have a small amount of sandstone adhering to them, but others are almost completely buried in the piece of rock with only little bits of the fossil exposed. I was wondering what the best way to remove the rock is without damaging the fossil? I've tried soaking them in just water and cleaning with a tooth brush, but it's still too hard to remove most of it. Some people suggest soaking in vinegar, but other reports seem to say that will damage urchin fossils and most of the information I've come up with relates to removing fossils from limestone rather than sandstone. Thank you in advance for any suggestions
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Hello, I recently picked up these fossil sea urchins. I think they're miocene in age. I'm not quite sure if these are different types of urchins, or if they are just in different stages of weathering. I put a modern "burrowing urchin" next to the largest one as a comparison. Found in Ruwais, Abu Dhabi, UAE (United Arab Emirates) on a beach with dredged materials on it.
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Hello, I found this echinoid the other day, and I was hoping to clean it up. Unfortunately, it's in bad shape. This is the only one I have of this type, so I would like to make it presentable. I found it on Jebel Hafeet, Al Ain, UAE (United Arab Emirates). The fossil appears to be covered in calcite, plus the rock there is mainly made up of limestone. I heard that the "vinegar bath" isn't such a good idea, what else can I do?
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I have been contacted by the local historical museum which is looking for a prepared brownwoodensis urchin from the Lake Brownwood Spillway. Even though I live here I have never been able to successfully collect and prepare one of these. I told the local museum person I would try to help in the search for a suitable example. Can anyone point me in the right direction to find a specimen?
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Hello everyone! Just got home from my weekly vacation and started immediately the preparation. The matrix is soft, mostly loose sandstone and once wet you can process it easier. Right now I have no power tools, only some screw drives and picks. The process seems that will take a lot of time. Any advice is welcome. I also need advice concerning some issues. 1. One urchin that after making it wet, a crack was revealed. There is possibility that the crack expanded by half millimeter. How I treat that? Naturally dry it and application of 20% paraloid? Then proceed as above? 2. Another sample has a small piece broken, which of course I collected. The broken piece has some matrix on it and is less than 2cm. Again paraloid and then same process? 3. The drying process can be accelerated with sunlight or this might be dangerous and may cause cracks? Thanks everyone. The first pic is the one I am working now. It was like a sandball before removing most of the matrix and now I am doing detailing. The second is the slightly cracked at 11 o'clock. The white side was exposed in the weather, the rest was within sandstone wall in the quarry.