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Showing results for tags 'limestone'.
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I found this plate near in the upper decorah formation Minnesota (Ordovician period limestone). These chunks are frequently littered with trilobite bits and fragments but this lookk a little odd to me. It has a "knob" or bump structur on one side and a gradual bend on the other. Its still partially covered by coral and debris but most of it is exposed. Any ideas?
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I am enjoying learning about the rocks in our yard. I found one that had something embedded in it, so I decided to try to remove the items from the matrix. I brushed and cleaned it well with vinegar and water and then used dental tools to pick the matrix away from it. How fascinating it was to see the matrix fall away - it was NOTHING like I expected it to be! There were two items embedded - and they may have originally been one whole piece. It is hollow and I have no clue if it is a fossil of some sort or a different type of rock that was embedded into a limestone rock. It took hours to remove these two items, but it was worth it. I did take some photographs along the way, but unless anyone is interested in seeing those, I will just post the end result. These two photos are of the first piece to be removed. This first piece is not deep - it seemed like maybe a "top" to the other piece, although they were laying side by side in the limestone. I have photographed both sides. Measurements are about 1.5 cm x 2cm. Thanks! Ramona
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My grandson and I found this chunk of fossiliferous limestone in our yard today and I cleaned it with vinegar, but it is very crumbly. I can tell that it contains mostly fenestellan bryzoa and crinoids, which is what we find most of in our yard. What is the best way to preserve this fossil to keep it from crumbling? I am hesitant to clean it anymore due to the fragility of it! Thanks! Ramona
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Hi everyone! A few months ago I recieved this little brachiopod with crystalization on the inside, it was a nice piece which came very cheap. Unfortunatly there was no information on this piece, no ID, no location and no age. All I know is that it came from an old collection and that the previous owner had lot's of fossils from Scandinavia & Germany. The matrix in very soft limestone, comparable to the Maastrichtian limestone from my region, I know similar limestone formations can be found in the UK, France, Denmark & Germany, to name a few. So I was wondering whether anyone can give more information on this piece, I know it's hard to ID something when no information is available, but maybe someone has a piece similar to this or knows the species when he sees it? Thanks in advance!
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I'm working on my fossil limestone sink and there are a handful of fossils showing up in the polished bowl. Most are horn corals or shells, but this particular one caught my eye. It might just be a shell or something, but I figured I'd let trained eyes give it a shot. It's about 1inch long.
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I have been watching Youtube videos about cleaning fossils and have learned quite a bit. Since I have SO many rocks in my yard I decided to kind of take one apart and learn about it. I originally thought this was some sort of coral/sponge fossil, but now I am not so sure. It has been thoroughly cleaned with vinegar and then I started removing what I think is the "matrix" with a dental pick. It's okay if I damage this - I am doing it so I can learn! I basically dug out any soft areas and have been surprised at what is emerging. In fact, I am not so sure it is a fossil at this point? Question: Will a fossil be damaged by scratching matrix out from around it? How can you tell what is matrix and what is fossil if you aren't completely sure what the fossil is? And I mostly have fossiliferous limestone, which is hard/impossible to remove all of the matrix from (this rock is not fossiliferous, but I have a lot of them laying around!)? All input appreciated! Thanks Ramona
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I've got to stop picking up rocks when I take the dog out... I already have so many in the house that I need to clean and study more, but I went and did it again today. It looked interesting, but now I am baffled. I cleaned this just a little bit with a weak vinegar solution and then looked at it. I am used to seeing fenestellan bryozoan, so these little round things caught me off guard. Are they branches of the bryozoan fossils? I I do seem some fenestellan bryozoan elsewhere on the rock, I think, but these little things look like eggs or snails? Point me in a direction and I will go research - again?! Thanks so much for being patient with me and my neverending questions! Ramona
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I think I have completed my first full cleaning of a fossiliferous limestone rock. I will post a series of macro photos of the rock here and would welcome input. I am new at this (like I said, it is my FIRST full cleaning) so would appreciate input and suggestions. I first soaked the rock in a vinegar and water solution for a couple of days, taking it out every once in a while and brushing it with a soft bristled paint brush. I had ordered some essence of vinegar to have a stronger acid, so when that arrived I used a very small amount of it on the brush to continue cleaning the rock. I then placed it in a baking soda and water solution overnight, again brushing and rinsing it every once in a while. It seemed to have stop bubbling this morning, so I declared it "done", but would like thoughts on whether it looks completely cleaned or not. I mostly see fenestella bryozoan fossils in it, in different stages and at different angles, so please let me know what else, if anything, you see in this rock. The size of the rock is as follows: 5cm long, 3 cm wide, 2.5 cm tall and I found it in our yard in Huntsville, Alabama. I am posting a number of macro photographs of different areas of the rock and I may ask questions on some of them. Thanks for any and all input!
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Blue Kentucky limestone slabs full of inverts
sharkdoctor posted a topic in General Fossil Discussion
I though maybe the invert folks would get a kick out of these two limestone slabs. I picked them up several years ago when driving home from Kentucky along the AA highway. I cleaned them up a bit, but with the soda rig that @Gizmo loaned me. I don't really know what the critters are, but they look neat.
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This piece of limestone looked like sea shells (clams or brachiopods) at first glance. However it’s one bumpy continuous surface. Any idea? The rock would be around 305 million years old. The rock broke easily along this surface which made it easy to see. Shells typically show white preserved Agagonite on them as well. No such preservation on this surface. Rock from Western Pennsylvania, United States. The surface is wet. Ruler is in inches.
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I’ve been collecting for a year now. I started to make a limestone sink, because I love the limestone that I find marine fossils in locally. Well part of the process was polishing the bowl I cut out, and wow, polished black limestone is a thing of beauty. It even has some fossils in it. I’ll post the sink one day. Naturally, I wanted to try polishing a fossil focus piece. I found this nice coral, likely Rugosa. I polished it to 3,000 grit with a Dewalt polisher and a set of stone polish pads. It was a quick experiment but I liked how it turned out.
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Need help identifying the following fossil. Found this fragment in the limestone in the locality Theokafta of the Argolis Peninsula, near the Ancient Theatre of Epidaurus (Greece, eastern Peloponnesus). The limestone contains condensed ammonoid beds of the Hallstatt facies (Triassic: Anisian–Ladinian). The size of the fragment is about 1,5 cm. Any suggestion would be much appreciated!
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It's me again! And I promise that this is NOT a piece of concrete! ;-) (Joke from previous post.) This is the bottom of a limestone rock that has a lot of bryozoan fossils in it, found in our yard in Huntsville, AL. Do the holes look like trace wormholes? Or could they be from the digestive systems of the fenestalla bryozoans? I can get a closer photo tomorrow, plus photos of the rest of the rock if that would help. I left this one in the yard, but I know where it is! Thanks! Ramona
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I haven't posted in a while, due to traveling and then starting a new job, but I find it hard to stay away from the rocks in our yard. We recently moved into a house (Huntsville, AL), where I soon discovered that we had a wooded area with a creek bed full of fossils. From what I have seen so far they are mostly common bryzoan, crinoid, etc fossils in what I have learned is fossiliferous limestone (mostly). I ventured out today and photographed some rocks, as there are simply WAY more than I can bring into the house to study. I am wondering about this rock... According to what I have learned here, it is likely limestone with fenestella bryzoan and crinoid fossils? Oh, and the hitchhiker looks like some sort of insect. LOL It's well camouflaged, so you might have to zoom in to see it. If I am correct on this identification, the thanks goes to you guys! Ramona
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Hi guys, Today I was going trough some old boxes of not very well preserved fossils and I stumbled upon this rock which i found before a few years in a limestone deposit on a fossil beach here in Bulgaria. (Echinoids and ammonites are common for this site). When I found it I thought it really resembled a fish spine, so I took it just in case it really was a fish spine (although I doubted it). So can anybody tell me if this is really a fossil of some sort or is it just some natural rock markings. Best regards to everybody!!
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Miocene beaked whale found in Balearic Islands' limestone quarry
Oxytropidoceras posted a topic in Fossil News
Bianucci, G., Llàcer, S., Cardona, J.Q., Collareta, A. and Florit, A.R., 2019. A new beaked whale record from the upper Miocene of Menorca, Balearic Islands, based on CT-scan analysis of limestone slabs. Acta Palaeontologica Polonica, 64(2), pp.291-302. http://webaccess.igipz.pan.pl/archive/published/app64/app005932019.pdf https://pdfs.semanticscholar.org/7247/52c31e2013100da8d07eb1aaa4214f92f14b.pdf https://www.researchgate.net/publication/332589581_A_new_beaked_whale_record_from_the_late_Miocene_of_Menorca_Balearic_Islands_based_on_CT-scan_analysis_of_limestone_slabs Many more papers about fossil whales at: https://www.researchgate.net/profile/Alberto_Collareta Yours, Paul H.- 4 replies
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Found this chunk of limestone at my Lake Michigan's sand depleted "beach". Due to the extremely high water level, storms have washed away pretty much all the sand at this beach, exposing the large underlying rocks. What do you think of the almond-shaped preservation of the interior parts, while most of the shells themselves have been dissolved away?
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My boss has a collection of fossils picked out of the Brazos river, TX. Most of his are pet wood/plant but this one perked my interest.
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I am trying to wrap my head around what these things looked like in "real life" so I can recognize them better. This is a limestone rock with what I think are fenestella bryozoan fossils, found in Huntsville, AL. Mississipian age. This photo is looking down at what I call the "top" of the rock. The next photo will be from the side, looking at the same area but from the "inside" of the rock. Can anyone point me to a site where I might find a diagram of these to better help me understand what they looked like? Thanks! Ramona
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This is my first post in the Fossil ID section - I am SO excited to find this resource! A have found a few very helpful folks in other places, but this group is a huge wealth of information! A bit of background - we moved into a house just outside of the city limits of Huntsville, AL, a couple of months ago. After finding a couple of fossils laying around in the yard, I decided to investigate the wooded area at the back of our property a bit more. Whoa!!! There is a creek bed on the property and the closer you walk to the creek the more rocks you have to walk over. Every single rock I picked up had some kind of fossil in it. The sides of the creek have rocks embedded in them, too. It seems like someone may have looked around a bit in the past (found a small pile of rocks) but many (MANY) of these rocks are in their natural state. Most of them, in fact. It seems overwhelming to me, but I have been delving into understanding the treasures I am finding. I don't understand all of the classification systems, but I found a place online that seems to indicate that we are in the Mississipian Age? The rocks which have been identified so far are all limestone, so I am assuming this one is limestone as well. The soil is VERY red (someone called it ochre red?) and some of it always remains on the rocks after I clean them. The fossils that have been identified so far are fenestella, bryzoan, crinoid. And I think the word fossiliferous was also used? I am a photographer by trade and macro photography is my FAVORITE, so I will post plenty of photos. This particular rock is a very small one compared to most of them. It is also harder than the other ones I have worked with - less "crumbly". The first couple of photos are of the top and the bottom of the rock, to get a general idea of the size and shape of it. The rest of the images are close ups of various areas. Any and all input is appreciated! Is it common to find an area like this where rocks such as this one are very abundant? From what I can tell these are all common fossils, but a great springboard for learning! Hints on how to clean and store the rocks appreciated, too, since there are so very many of them? Thanks!! Ramona
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Hi, another find this month. largest is 11 cm. appears to have more both front and back. limestone 2.3 cm x 2.3 cm x 0.80 cm or covers a U.S quarter. Found in West Michigan. Thanks, Bob
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Hi, everyone! Recently I got some ammonites from Nigeria, but I can not found any reference. So I have no idea how many species of them, I need your help!
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Found this in Comanche Peak limestone formation in Central Texas. I'm thinking Eoradiolites quadratus but not sure if there's enough info to nail down species. Apex to apex measures approximately 1.5 cm for three different samples. I will slowly post more pics of the other specimens, as I reduce photo sizes without losing quality. Thanks for your help.
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Hi folks, I found this on Killiney Beach in Dublin, Ireland. I usually find fossiliferous limestone there full of crinoids and corals and other fragments. This caught my eye but I have no idea what it is. Any thoughts anyone? Sorry for the use of a 1 pence coin as a scale here, I just saw that using coins is not ideal but I am back in Ireland and the piece is at my home in London where I took the photos. Sylvana
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Hello, this was found well... I don't really know, I will post the photos and maybe someone has encountered something similar. It is very heavy, 30 cm from top to bottom, at some points you would think that is was splattered with some kind of silicone or glue, but inside that matter, there are crystal clusters, probably calcite, or quartz. The black line you see, is black paint, probably an indication of how much of it was not buried. Can't tell which side though to be honest.
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