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Showing results for tags 'Concretion'.
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Here is a video I just published that is just over 1 minute in length. Very funny too. I have an absolute blast putting this together. Enjoy
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Hello, I am new here. I am looking for information on this concretion I found.
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Hello- I am hoping to get some help with identification of a few concretions. These were all found in Mazon creek pit 11 area. Unfortunately, I was only able to find one side of these. The second to last may not be a fossil, but it has a really interesting/symmetrical shape so added it in just to check. I’m happy to take additional photos if needed. thanks in advance, this forum is always very helpful and knowledgeable when it comes to identifying! -tom
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As it's too stormy to collect fossils... Jurassic, Callovian, Oxford Clay, Peterborough Member, Whittlesey, Cambridgeshire. This was something very odd I found from a concretion in the Oxford Clay. They are great for three dimensional fossils such as ammonites. It looks like wood, in which case it's my first bit that isn't carbonised, or possibly bone. It could also simply be mineral. Another possibility is fish. I really wish there was more of it, that might have cleared it up, and would appreciate your thoughts.
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From the album: Muncie Creek Shale Phosphatic Nodules
One of my larger concretions and personal favorites -
From the album: Muncie Creek Shale Phosphatic Nodules
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Hallo all, please can somebody help me with ID ? Cenoman ...
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Howdy! I was working on this medium concretion that I thought would have been a crab but after reaching little less than half with a hole and not finding anything I decided there probably wasnt a crab in it and cracked it open. After opening it I saw this, looks like just a crab arm but wasnt entirely sure. Theres been two other concretions from this area that seem to only be arms, havnt finished prepping them, and wasnt sure if its common for washington concretions.
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Howdy yall! Its been a while sice I posted because on the same day I collected these concretions me and my digging buddy collapsed a chunk of the cliff onto ourselves and broke a few bones (Its all okay now and also congrats to whoever collected the concretions in the rocks). But all I have is a dremel 290 and these are gigantic concretions that I dont think I can prep by myself. I was just wondering if yall though it would be better if I just bit the bullet and got an actual set up or a ball park price to get someone else to prep it (I really want it well done another reason to get someone else to do it cause im garbage at prepping)
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Hello fossil hunters! I am asking for some help as a humble beginner. Yesterday I went out with my son (age 14) to a site just south of Braidwood, IL. We were collecting near Ponderosa Lake, to be more precise. This is our second trip out there. The first time we really had no idea what we were looking for, but now we are getting a little more experienced after reading a lot and digging around. In total we found around 60 intact (good shape, in my unprofessional view) concretions, as well as some interesting fragments. We had a nice time collecting yesterday in the cold. We were the only people out there. Maybe we are crazy! I am requesting help with an identification, and some general advice on how to best tackle opening the pile of concretions we found. First, this was one found awhile back and I believe it is similar to a find that connorp found: Macroneuropteris pinnule (see thread below) Secondly, we found some concretions that were already open. I just grabbed a few to have here since I have read that sometimes they contain jellyfish. I cannot determine anything by looking at these. Does anyone have an opinion on these? The coin is about 20mm in diameter for reference. Finally, I have read about the freeze/thaw method as well as using a hammer to crack them open. I will start out using the freeze thaw method. I separated them into groups of concretions that I though were good. The picture below shows them laid out on some paper towels in the kitchen. I just washed them off and am waiting to start the opening process. I have a few questions around both methods: Freeze/Thaw 1. I am going to keep them outside in a bucket in water for 20 days. Then I will start freezing them. How long do I need to keep them in the freezer? Also, once I take them out, do I just run hot water on them, or do I let it thaw in room temperature? Once I have determined if any have opened, do I need to re-soak the concretions again? or, just straight back in the freezer? Hammer 2. Does anyone have a good video of how to use a hammer on these things? I tried it on a few I had before and it was a disaster. I might be using the wrong hammer. I might need a chisel, too? I might not be hitting in the correct spot? This might seem basic to you pros, but I am really an amateur.
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Found this in creek, Eagle Ford, at first thought it was part of gastropod but after closer inspection it started looking more like coprolite now I'm undecided so I will leave it up to the TFF court.
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Cretaceous Eagle Ford concretion that caught my eye, one part of this disc has what looks like strange sutures but this would be one flat Ammonite if that's what it is so I'm stumped.
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Found this laying on the surface of a flat sandy area in southern Maine. I'm not sure what it is.
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Hi all, this is my first post here. I found this the other day on a north shore Long Island NY beach, down at the water's edge. Looks like a partially peeled hardboiled egg. Was wondering what, if anything, it could be? I've tried to research as much as I could, but running into dead ends. Thanks in advance!
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Not the most exciting start to my 1st mazon creek freeze/thaw attempt, but at least its not blank. I am guessing some kind of plant material
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One more plea for help - and apologies if this is obvious to all the folks here who know their stuff. Found this on the Potomac River near Montross, VA (the Northern Neck area as it's called). Any help or guesses would be very appreciated.
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I found fragments of a cephalopod at the Lost Creek spillway site near Jacksboro Texas on August 21, 2021. Pennsylvanian, Graham formation, Finis Shale member. It includes a 90mm long section and two short phragmacones. The 8 pieces of the longer section were found adjacent to each other and fit together perfectly but the two smaller pieces were a few cm away and no points of contact could be confirmed. The long section exposes the inside of part of the shell and is encased in a concretion on the outside, not the usual way these are found. The smaller pieces exposed the outside of the shell in the more common way. The long section is broken along the long axis with approximately one half of the shell missing along one side. There are possible fragments of the missing side lying on the interior surface. The smallest phragmocone has a ventral siphuncle suggesting a Bactrites but an intermediate layer with the finger-print pattern is visible on both short pieces and some of the broken pieces lying inside of the long piece, supporting the possibility of it being Shimanskya postremus instead. At first the absence of apparent cameral deposits on most of the long section suggested it may be the body chamber. Both smaller sections had septa. Evidence of a single cameral deposit at one end on the long piece caused me to think it may be towards the adapical direction and the diameter of the larger phragmacone section was the same size as that end at 29.7mm. The diameter of the smaller phragmacone varied from 20.6mm to 22.3mm. However, the diameter at the opposite end of the larger section was smaller than the end with the possible cameral deposit at 24.9mm. Of course if it were toward the adoral direction it should have had a greater diameter uming the shell continued to increase in size as it grew. The smaller phragmacone was found near the smaller end and the larger phragmacone near the larger end. This makes me doubt that the apparent lack of septa or cameral deposits in the long piece actually confirms that it is the body chamber. It could be that an outer layer is all that is present since that may not have evidence of cameral deposits. Are my assumptions about this specimen correct? If so, is this a common way to see these specimens preserved or is the view of the inner surface fairly unique?
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I hope this is the place to learn some knowledge. My husband works in a quarry in Devon and after a blast has come across these four beautiful giant concretions? Which were in a pocket together. I would be interested to know what they are made of. We have washed the one which was the smallest - the only one he could carry -the colours seem to be very red with some orange. There is also another which is around 1.2meters across which we will be adding to our set. I would be interested in any information regarding our new found rocks
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Hi everyone, I was going through some more of my Mazon creek material and could use some help with ids I have some ideas what these might be, but I'm still pretty inexperienced and would really appreciate some help. Thank you in advance!
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Found in Eagle Ford creek, funky looking whatever it is. Because of the fine grains and indent on the end I started thinking maybe this wasn't just a concretion, but I'll leave it up to the experts.
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Hello, I purchased this specimen a few months ago at an estate sale. No label, no information. The fossil has been split lengthwise, polished, and the interior void space looks to have been filled with a sort of yellowish epoxy. Each half measures approx. 4.75 cm long x 2.5 cm across. Original depth before cutting looks to have been around 2.5 cm. I believe it is a Turritella, in a distinctive layered, calcareous concretion. I was able to find a photo of an almost identical specimen on a college professor's website, but I was unable to get additional information after following up: the specimen isn't in their collection and the professor who took the photo has since retired -- and supposedly liked to take photos of odd specimens at the Tucson Gem and Mineral Show [direct link to image]: http://skywalker.cochise.edu/wellerr/fossil/gastropod/6fssl-gastropod-turritella2.jpg I think I've seen similar specimens before, but can't recall where... Does anyone know where this piece might be from? I'm hoping the concretion is distinctive enough to be identifiable... Thanks
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Hi I have had this supposedly dinosaur egg said to be from the Nanchao Formation in Henan China for quite sometimes and I have never really been sure of it's identity whether if it's just concretion and would like to have some experts and third party opinion on this. Any help IDing this specimen would be appreciated. This is the specimen in question: I have also put the specimen under microscope and tried taking picture of the supposedly shell surface texture but am still not quite sure what to make of it whether if this is a texture of a dinosaur egg specimen? I have also taken a picture of the specimen around the edge of what seems to be a shell as well for a closer look in case it helps: Thanks!!
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If someone could identify what type of ( white weird shape rock) this is would be great, no info. The vertebra is from Montana according to memory, any idea species ? Sorry for lack of details
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Picked this up in creek that is mostly Eagle Ford but is downstream from where it cuts through QAL. Pretty sure it's a concretion but given it has a few inclusions want to make sure it's not coprolite, and yes I read the post on the subject but still left me unsure so best to leave it up to the experts!
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During an afternoon break I found a dozen or so promising concretions at an outcrop of Fayetteville shale. I'm thinking of going the freeze/thaw route as my history of hammering concretions is a but hit or miss. Curious as to the opinion of the forum on the best technique. Also, should I consider setting a couple aside and try to get whole fossils by remove the matrix? Thanks in advance.
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