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Showing results for tags 'limestone'.
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This chunk of limestone was unearthed during an excavation for a business expansion. When excavator dumped the bucket containing this rock it split in two upon hitting the ground. The apparent spiral fossil was clearly revealed on both halves of the rock. The entire chunk of limestone is a triangular shape with a base of 620mm x 330mm peak heighth. The round spiral at the center is 160mm diameter. Location found is Hancock County, Garner, IA, USA and unearthed from the upper 10 feet of soil, glacial deposits from the Des Moines lobe of the Laurentide ice sheet. We'd gotten into subsurface clay deposits that had frequent rocks of a wide variety measuring anywhere from 18 inches to 4 feet. My question is if you feel this is some sort of gastropod, perhaps ammonite or platyceras? I also wonder if this represents a chunk of death plate and may include crinoids? I wonder too, if this could be platyceras being parasitic within a crinoid? Using steel picks, brass and nylon brushes and one power wash session at a car wash, more detail gets revealed. There are obviously harder areas of the rock and the matrix is becoming extremely fine and fairly resilient. I'll admit to using a Dremel with a pointed fitting in areas outside of the circular fossil. Slow speed and a light touch the tip will deflect off the harder rock and remove the softer matrix. Obviously this is not ideal, so can you please advise about acquiring an air abrasive set up? Is this a modified air brush or something? Thanks for any advice and thoughts. *In the photos I've designated ½ of the broken rock as "A." The other half is "B." The pictures without a letter designation are all of the "B" side.
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Family was excited to find this in middle tennessee in what I’m assuming was a limestone river bed. Any input what it might be? we can’t decide if it’s a tire track or something more exciting.
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Hi, I'd love some information about this fossil. I found it in a river gulley in the Waipara River, Canterbury, South Island, New Zealand. I've attached a screenshot of the information board at the site. Thanks for any help you can offer.
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Found these in a limestone formation near Bocairent, Spain. From some quick research it seems to me like these might be from the upper devonian, and some look like nautiloids? One of them looks like a coral. Perhaps crinoid also? Would love some help on IDing these if anyone has any ideas!
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Hi! This was found near Meridian, Texas, US. The geographical area has a large quantity of limestone rocks and boulders filled with shell fossils. We were exploring a boulder and realized an area was slightly loose, and we pulled out this item that was wedged within the boulder. There is a smallish lake nearby. The boulders were manually placed to block cars from parking on the campsite, though they were likely sourced from the area as there are naturally occurring ones all throughout the park hiking trails. Appreciate any info on what this might or might not be!
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Hello everyone ! I received this fossil as a gift from my grandfather, a retired geologist. I've always wondered if it was possible to trace the species of the two fish. The fossil was presumably taken in an area of central Italy, probably in the Apennine area of Lazio or Abruzzo. the two fish measure just under 3 cm. Moreover, do you think it would make sense to continue cleaning the surface completely to perhaps discover new ones? Thanks so much !
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I just went to a local rock and fossil shop in Montana and they had an amazing selection of fossils for really reasonable prices, so I ended up getting quite a few. They had a lovely Solnhofen rack, mostly filled with fish, insects, and coprolites and some beautiful squid but I saw this questionable creature in the corner for very cheap so I decided it was worth it to purchase. I am guessing it is a jellyfish due to the shape, and I hope it is, but if it is something else, I really did not waste my money. It's around an inch and a half in diameter (4cm.) Just hoping it's not a coprolite lol. Anyone know a thing or two about Jurassic Jellies? Pic below, I can take a better quality photo in the daytime if that helps.
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Hi! Thought I'd give this a shot: I found this piece as a kid, and have held on tight to it because it's always been my "cool rock I found all by myself". Decades later, my opinion hasn't changed. Found in a rural part southern-central Ohio. Decent weight for its size, would definitely hurt if someone threw it at ya. My only query is that I have no idea what it is, as a super amateur mineral collector/enthusiast. Some strangers on the internet have pointed to it being limestone, but no guesses on what's imprinted on it (if anything). Would love to hear some opinions, or just for someone to flat out tell me it's been nothing special this whole time. Happy almost New Years!
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This was found in a dry portion of creekbed where Devonian age bedrock is out cropped (Lime Creek formation, Mason City, IA). The fossiliferous layers contain bryozoans, stromatoporids, brachiopods, crinoids. After using a tooth brush to rid it of the loosest matrix, this is how it looks. I've attached some microscope pics of the specimen as well. It's essentially a specialized webcam connected via USB to a computer. I'm not able to definitively discern what this is. I'm hoping it's a crinoid calyx but the closest resemblance seems to be some species of oyster. Any suggestions as to what exactly this is would be most welcome. Thanks Sun Dec 18 19-12-48.bmp Sun Dec 18 19-12-48.bmp
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Fossils from Magoito, Portugal (Cretaceous limestone cliffs)
tobie-lisbon93 posted a topic in Fossil ID
First trip fossil hunting. Mix of vertibrate fossil, unidentified trace fossils, and pretty rocks (hard to tell from from the photo). Second batch is from Caparica, Miocene, including shark teeth (probably maku). Anyone want to help ID some?
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I found these 2 fossil fish in a flea market, and as often in these conditions there was no indication of provenance and identification. please help me if you recognize these specimens. thanks
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Hi - I am not sure what I am looking at or if I should bother with these types of finds. Could anyone shed some light and provide direction? I am finding a lot of "large rocks" like this in small dried-up basins between hills. The area is close to the Harpeth River in Nashville, TN. Thanks for any advice in advance. My daughter and I like to go exploring and want to guide her in what we are finding.
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Hi everyone, found this fossil in limestone area in United Arab Emirates which was formed 66-74 mya, according to local geology museum. Not sure what it could be but looks very pretty for sure This fossil was found on the ground in sandy areas where bivalves and small shells are found quite abundantly.
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I’ve had this forever, I think I found it in Middle TN. I initially thought it was a cephalopod, but I know more now, and I don’t see any septum(s). What say ye? Thanks!
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Hi, I don't have any information on this specimen since I believe the rock that I found it in is foreign to the area I discovered it. Although I think the rock is from somewhere around the Western Pennsylvania/Eastern Ohio area. It is approximately 2.6 cm by 2 cm. Just hoping someone has some idea what it is. Thanks again.
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- brachiopod
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Hey there Fossil Forum. One of my friends found an interesting specimen showing a well preserved (lamellar?) microstructure inside the Beauharnois Fmt limestone (Joliette area, Québec). Beauharnois Fmt is Ordovician. To me, this could very well be some kind of colonial animal (like a bryozoan or graptolith), but I have never seen a similar one where I live so far. The dual branch architecture makes me think of a graptolith, while the somewhat "lamellar" microstructure reminds me of a bryozoan. However, I would not be surprised if it was something entirely different. Any guess? Please see pictures below. Specimen is 5 centimeters long.
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Hello! I am very curious about this find. Like the title says, this was found in mid-Missouri in a creek bed. There are a few hexagon patterns I can see that are connected but I truly have no idea what I'm looking at. Any ideas?
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Does anyone know what this might be inside of this limestone? Found at Maskuta Creek, Alberta, a stream connected to the MacLeod River 4 km from Drinnan in the Hinton Valley
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I apologize in advance for the photo quality, and the fact that I did not have a ruler with me when I took the pics. I see these things EVERYWHERE. The ones pictured here are large (6-8”, 15-20cm), in limestone slabs. But I see them in smaller sizes, in rocks that I pick up. The rocks often have recognizable fossils in them, too: cephalopods, brachiopods, crinoids, bryozoans. I am thinking maybe these are internal structures, perhaps of brachiopods? I’m starting to think I am crazy…
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Howdy! I found dozens of crinoid stems recently and most of them seem to have a thin layer of matrix attached. They were found in limestone, but I don't even know what mineral they've been fossilized in...calcite? Would I be able to remove the matrix with sandpaper and perhaps even polish them? Would sanding them remove visible segmentations? All help is appreciated, thank you.
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I was searching around a local stream when I found some limestone with dozens of crinoid stems. I can't say what the formation is as I think they rolled down a hillside which had foreign limestone blocks to prevent erosion. If they are native, they would be Pennsylvanian Glenshaw Formation. Each of them has stellate lumens and many have a pinkish hue. Can anyone tell me what variety of crinoid and is it possible to discern the period? Thanks.
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Hello! Is this a crinoidal limestone rock? Dimensions are 7 x 5 x 1 cm. Wet: I picked it up in Braila county, Romania. A few hours ago. Thanks!
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Not sure it's a fossil possibly a turtle need help identifying
Missouri Timber Finder posted a topic in Fossil ID
Please help me identify this item. Found part way up a wooded hill side in northern Missouri.
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Please identify this tooth Found in cretaceous, turonian sandy-limestone in Poland (Górka Pychowicka, Cracow). This rock is amazing, on left there's Ptychodus decurrens tooth too.
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