Search the Community
Showing results for tags 'limestone'.
-
I thought this was my typical fenestellan bryozoan fossil when I first started photographing this rock, but when I looked at the photograph I realized that the texture was more bumpy and different... Other areas of this rock have what look like quartzite like areas - could this be something like that? My first impression was that it looked like reptile skin, but then I thought more rationally and highly doubted it. ;-) Found in Madison County, Alabama. Ramona
-
I have found a couple of trilobites on a friend's property near Eganville, but I don't know what the attached fossils are. I am pretty sure the last one is a number of shells, but any ideas on the other ones? Thanks,
-
I've been cleaning away at this by hand, I can't get much further as the rest of the matrix is very hard. What have I been uncovering here? I thought brachiopod shell when I just saw the edge, now I have no idea. Looking at other pics of Wenlock fossil I couldn't spot anything similar. Can anyone enlighten me?
-
Only a couple of one hour forays so far, I've only just had treatment on my hip so taking it carefully (by which I mean I'm clambering over scree slopes with little care but getting told off for it) Thought I'd drawn a blank on the trilobite front until I started cleaning this - and then I saw my very first trilobite! How small do they come?
-
I found this fossil back in 2014 at Cedar Creek Reservoir in Franklin County, Alabama. I was told the fossils we'd find there would be Mississippian, contained in Bangor Limestone. When I first found this I thought it might be a trilobite butt or a shark tooth and I recently decided to try to clean it, and now I don't know what it is there are two depressions under each prong, and the prongs bow back up (couldn't really get a side pic) The pictures show the uncovered fossil (the lighter material was what was initially uncovered). Thank you for any assistance! On a separate note: I also feel terrible that I ended up damaging it a little (chipped the left edge on the bottom most segment)
-
I was recently reorganizing my fossil collection and thought I would share some pieces I collected during Paleontology field trips in undergrad at Alabama. I'm glad I took thorough notes at the time! The demopolis chalk is a popular formation for finding Exogyra/ostrea/pycnodonte shells and shark teeth. We visited a site in Tupelo, MS many times for surface collecting. Some of the cool pieces I found were many fragments of a mosasaur jaw (top pic, top 2 slots), a Squalicorax kaupi tooth, a scyliorhinus(?) tooth, bony fish vertebrae, and bony fish teeth. I was told the dark fossils at the right of the third picture might be ray plates, but I'm not sure. Turritella in pic 1 are from a different formation.
- 7 replies
-
- 5
-
-
- alabama
- athens shale
- (and 16 more)
-
I think the curved part of this rock is probably just a coincidence, but since I have never seen anything like it before, I thought I would check. Like a lot of other rocks I find, it seems to have a layer of limestone fenestellan bryozoan fossils encrusted around it (that's about the only way I know to describe it) and lots of tiny impression fossils on the inside of the rock. Can anyone help me figure out the rock's story? What might have caused the curved and layered appearance? Is that just a coincidence? Or is this a particular "thing"? Found in Madison County, Alabama. I will post more photos in follow up comments. Thanks! Ramona
-
I am learning to pick apart the items I find in the limestone fossiliferous rocks from my yard, but I see some things here that I am not familiar with. What is the tubular item at the bottom of the photo? And what are the tiny round black things? They look like poop, LOL! One of them is inside of a crinoid fossil, but it may have fallen there? This was found in Madison County, Alabama. I find fossiliferous limestone mostly with fenestellan bryzoan fossils, crinoids, coral, etc. Thanks! Ramona
-
What is the best way to remove a fossil from Limestone? Thanks Greg
-
Hi everyone, I found this fossil in Eastern Ontario. I was wondering if anyone can identify the fossil. I don't think it's a trilobite. I'm also wondering if it can be extracted. I believe it's in limestone. Thanks!
- 4 replies
-
- 1
-
-
- extraction
- limestone
- (and 1 more)
-
Hey all, hope it's ok to do 2 for 1 here. Both of these were found in a creekbed in Pike County Illinois while hunting for chert in the Burlington limestone formation. The first looks like urchins I've seen from other places but with a lot less detail. Possibly a crinoid impression below it. The second I don't even know where to start. It's a split rounded cobble with....something going on inside it. Mostly used to finding crinoids and horn corals in the area so these really took me by surprise. Thanks for looking.
- 12 replies
-
- 1
-
-
- burlington
- illinois
- (and 1 more)
-
Found these formations on the limestone of the southernmost shores of Alonissos, Greece (below the aptly named camping Rocks). I took some shots of the formations and collected pebbles from a nearby cove bearing the same characteristics. Any suggestions regarding their origin would be much appreciated, especially since there is little documentation on the island geology (according to the only geological map I could find these are neogene formations, yet there are certain geologists who, after visiting the island, suggest this could be a generalisation).
-
Hello all, I've done a bit of light prepping, but not much grinding. My typical matrix is a cement like limestone matrix that is hard to get things out of. You just sort of have to hope things come out clean. I bought an air scribe and use it often. It's not easy work, but eventually things can come out pretty clean. I have a couple of pin vices, but they are almost of no use with this matrix, there is so much calcite. I use them more often for shale. I use a battery and wired Dewalt grinder with a cement/granite cutting wheel to remove specimens from larger rocks. I have been looking into the battery or wired Dewalt 1 1/2in die grinder, but not sure if it would be as useful compared to something like a Dremel. I figure I would need some sort of carbide or diamond bit set. I'm looking to remove larger pieces of matrix before getting closer with the air scribe. Thank you for any help.
-
Location is in Missouri The area is dated to the Pennsylvanian most likely Raytown, Wyandotte Limestone Formation I have collected a lot of concretions and here are a few of which I have no idea what they could be My possible hunch is that some of these could be Fossilized Cartilage? Was really interested in knowing what this one was
.jpg.2abf47d09b27f4bc069ada98ade70d0d.jpg)
.png.b4bfc76983ebba07eea75bc80a26b892.png)
.png.eee3bf28d8f2b0fecfc7ddc53b3875e7.png)
- 3 replies
-
- 3
-
-
- cartilage
- concretion
- (and 3 more)
-
Found possible bone after Cracking open limestone concretions! From Missouri
Samurai posted a topic in Fossil ID
Location is in Missouri The area is dated to the Pennsylvanian most likely Raytown, Wyandotte Limestone Formation I usually collect a few limestone concretions from a rock pile I go to and a few pieces of what appears to be bone popped out! Unfortunately when it did crack some of the pieces went flying and were unrecoverable While I do not know if it can be identified, I can hope it can somewhat be recognized. In the area I have found fossilized Cartilage through my Concretion cracking adventures and have found teeth from specimen of Eugeneodontida in the area. I also have come across the usual Brachiopods, Crinoid stems, Bryozoans, Rugose corals and petrified wood in the area. I believe this is some sort of fish bone, as to what it was? I have no clue. Below is the left side of the concretion
-
Location is in Missouri The area is dated to the Pennsylvanian most likely Raytown, Wyandotte Limestone Formation At this pile I hunt at there are many concretions, but none exude the blue coloring as they are mostly black and much smaller. I am not 100% sure these are fossils but these are the only weirdly hued fossils I have found there. I have found a few teeth from Eugeneodontida, Horn corals, Crinoids, Brachiopods, Nautiloids and petrified wood from the area. I do not have any measuring tools that are not wood when I took these pictures. I apologize and hope this could be a decent size reference.
.jpg.61bfa186127d6c60ad2278be10d8c2fa.jpg)
-
Is this a Pennsylvanian shark crusher plate? Is it worth mining out of the limestone?
Samurai posted a topic in Fossil ID
Location Missouri Found in limestone that was blasted out by construction workers The area is Pennsylvanian on the geological map I have also found prehistoric fish teeth in the area along with Brachiopods, Crinoids, nautiloids and horn corals. I was not a 100% if this was a fossil or just a natural formation in limestone. I only say it could be a Pennsylvanian shark crusher plate but I am not 100% sure Sorry for not having a good size reference, I have very little measuring tools, and did not bring it to the site I found it in, there will be a ruler measurement of the hammer below I was not sure if it was biological in origin but the ridge makes me question, and those could be possible pores at the bottom? In all honesty I do not want to make assumptions XD
-
Hi everyone! Hoping you can help me with a mystery. We've lived in our house for 5 years now, but with nothing else to do considering this pandemic, we've been exploring our front stone path a LOT more closely than we did before (especially considering 5 year old daughter's interest in fossils). We have noticed three trilobites (don't know how I missed these in the past - they are clear as daylight) and a couple other interesting things (maybe bryozoans, coral or echinoderms - I admit i can't tell them apart well). All of these new discoveries have me REALLY wondering now about something big that i have been wondering about for 5 years - the very last picture. I previously thought it was man-made - maybe result of some rebar or something, but now with these other discoveries, i'm really wondering. Anyone have any ideas for us? Thank you! We live in Northwest Indiana. That may or may not say anything at all about where the stone was sourced. I suspect it's limestone? But I really don't know for sure. We do have a giant quarry nearby (Thornton Quarry - fossil-rich limestone and on my bucket list to get a tour there one day). But really, this stone could be from anywhere. Lastly, each of these fossils (or mineralizations, or whatever they are) is in a different piece of stone. Anyway - here are the pictures - seven "fossils" and one of the path so you can see what we're dealing with. Thank you again!
-
To date, I've found 4 teeth, all in the same general area. One is shallow, the others are a big longer. The 3rd is a bit broken, I don't think I have a photo online right now of it. All are attached firmly to the limestone and I don't have any hope of ever getting them out clean. 1st Tooth: 2nd Tooth: 3rd Tooth No photos of this one. Sorry I promised 4 teeth, sadly only photos of three. 4th Tooth:
- 23 replies
-
- 12
-
-
- carboniferous
- glenshaw formation
- (and 5 more)
-
Found this in the Permian Kaibab limestone today. Fish spine? The last photo shows a cross section of the mold that it seems part of.
-
I have found scattered limestone clasts with submillimeter holes in them. I pick them up wondering if they are stromatoporoids, bryozoans, sponges or the like. The holes do not extend into the interior of the rock. Some of the rocks have lichen and algae growing on them. I finally found a soft dark lichen or algae growing in the holes in the rocks. Let me know if anyone can tell whether the dark spots are lichen or algae. If they are the cause then the rock exhibits bioerosian. Bioerosian was first described by Conrad Neumann in 1966 as “the removal of consolidated mineral or lithic substrate by the direct action of organisms.” The organisms probably secrete acid that dissolves limestone. Algae and lichens were early colonizers of the land. Bioerosian created soil that allowed new forms of life including plants and trees to colonize the land. Check your limestone rocks for these traces of bioerosian. Theoretical these could become trace fossils if buried for more that 10k years. Photos show holes in Tertiary limestone with plant fossils that are from 0.2 to 0.4 mm in diameter. Again, if you know what the black organism is let me know. https://aslopubs.onlinelibrary.wiley.com/doi/10.4319/lo.1966.11.1.0092 OBSERVATIONS ON COASTAL EROSION IN BERMUDA AND MEASUREMENTS OF THE BORING RATE OF THE SPONGE, CLIONA LAMPA by Conrad Neumann.
- 8 replies
-
- 3
-
-
- bioerosian
- limestone
- (and 1 more)
-
My rock club had a silent auction and I won these two and it looks like they are soaked with mineral oil. Seller listed as unknown. First look to be Brachiopods. 8.5 cm x 6.8 cm . Side one has 3 nice ones & 4 tiny ones -- # 2 largest is 3.5 cm wide x 2.5 cm high #3 smaller 2 cm wide x 2 cm high
-
Found in abandoned Longhorn limestone quarry in NE San Antonio, TX. For scale: my thumbnail is 18mm Please help identify. Many thanks!
-
Hunting the Mazon Creek last weekend, my wife found this piece in the creek while hunting for Mazon Creek Fossils. What do you think ?? Any help appreciated !! Thanks for checking it out !! Phil
-
Just wondering if anyone may have any idea as to what these are, found today in Wenlock Edge, which is majorly silurian limestone. The first five are all of the same piece. Secondly - longshot, but could tis be a tooth? And lastly, is the small spiral, a sort of Gastropod? TIA
.thumb.jpg.b7350d61f1d2645d9ca1138db7f1a531.jpg)
.jpg.2abf47d09b27f4bc069ada98ade70d0d.jpg)
.png.b4bfc76983ebba07eea75bc80a26b892.png)
.png.eee3bf28d8f2b0fecfc7ddc53b3875e7.png)
.jpg.61bfa186127d6c60ad2278be10d8c2fa.jpg)
