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Found 326 results

  1. Fossil ID please

    Found in abandoned Longhorn limestone quarry in NE San Antonio, TX. For scale: my thumbnail is 18mm Please help identify. Many thanks!
  2. ID Help Please, Something in Limestone.

    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
  3. 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.
  4. A few ID's

    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
  5. Am I correct in thinking...

    Would I be correct in assuming both of these are sea sponge??
  6. Hoping someone may help with ID

    Hey, So i realize this may be a complete shot in the dark, but i thought i'd give it a shot none the less.. I found it the other day, in Wenlock edge amongst the limestone pieces, and have no idea what it is, and whether or not it's worth taking time to fully clean it up (Iv'e give it a decent scrub the best i can, but what's left won't budge with elbow grease alone).. Anyway, i was wondering if anyone may have any idea as to what it may be.. Iv'e attached pics of the piece both wet and dry. Thanks
  7. ID a fossil

    Hi, Found this in Galway in the West of Ireland. It appears to be a limestone that was part of an eroded bank. I really know very little about fossils and a totally uneducated guess is an algae fossil. Thanks for any help. Dave
  8. Crinoid?

    Hi, these were found in limestone shale in a canyon in Western Montana. Do you think these are crinoid columns, some kind of annelid, or other? Thanks!
  9. New Member - Fossil Finds?

    Hi guys, I've found the website while searching for information about some possible fossils I found around where I live in over several years. I pictured those and hopefully someone here is able to put a name / species / period to them. I am not a collector. I have always been fasciniated by geology, rocks and natural history. Knowing what they are will be very exciting for me. Number 1 : I cannot reemember where exactly I found it but should be some 100km's inland from Aegean sea, close by an ancient city called Pergamon in Modern Turkey. I was simply walking on the foothills of the city when this strange looking rock caught my eye Number 2 : These two are from Palermo in Western Siciliy coast. They're both from a pile of rocks next to the sea. I wasnt't able to look around much to see if there are more rocks like them. Maybe they're carried from somewhere close by. Number 3: Found around 500-800 meters elevation somewhere in Central Anatolia, more than 300km from any modern sea (former Tethys Ocean?) very heavy and rocky at hand. Thank you in advance for your time looking at those. Some more will come soon
  10. Boridino N.Y.

    Once again I took my boys out to get some fresh air and enjoy a nice New York day. The weather was in the high 60's, which for us Northerners is like being in the tropics. First I took them to shoot their BB guns. The black flies were horrendous at the spot we chose to stop at. Thankfully, I brought some bug spray and that kept those pesky buggers at bay. When we were done I took them to a spot not to far away in Boridino, which is on the east side of Skaneatles lake. There is a roadcut which I think I posted about a couple years back. The outcrop is a hard limestone which has a layer which is made up of millions of criniod segments. We didnt stay here long as this spot is not productive for any worthwhile specimens. But I needed some sort of fossil fix, even if only to view the criniod pieces. Devin spotted some snakes sunbathing, which turned out to be the highlight of the day.
  11. Totally encrusted large bivalve?

    Good morning all! Hope everyone is healthy and starting to get back to normal, whatever that will be! Found this yesterday below a roadcut in Kansas City laying by itself. The shape instantly caught my attention, and when I looked at it, I believe it is a totally encrusted large bivalve/clam! Very similar to the large native freshwater clams we have around here. The encrusted material is limestone- there are crinoid parts/what appears to be sea urchin spines and "hash". You can see faintly concentric lines. So my questions are-Since it has the shape and appearance of a bivalve, but is totally covered by "matrix" is it a concretion, or simply an encrusted shell? Second-it's very cool in itself, but do I try to clean it up to see what species and have a cooler shell? Could it even be cleaned well enough? Just alternating baths/soaks in vinegar?I have also included a pic of the encrusted matrix. Thoughts all? Thanks! Bone
  12. This was found in a rock quarry just outside Austin. I took the picture before I joined this forum so I didn't place a ruler next to it. It is on a Limestone rock, 15" long, 7" high and about 8" thick. I can see from the edge of the rock there is probably another layer of matter inside the rock. Thanks for looking at it and any help you can provide.
  13. Does anyone know what this might be? The surface of the rock is flat.
  14. Need Help Identifying Fossil

    Currently located in Fleming co. Kentucky. This area is known for its large limestone deposits and is very fossil-rich. I found this piece while walking along a small creek. I have been searching this creek for roughly 4 months and have found large quantities of Horn, stem/branch and brain coral with scattered amounts of cephalopods. This is the first time I have come across a piece like this in this creek and needed help identifying it as my other resources have turned up empty. The whole rock is 10cm/4 but the fossil is 5cm /2.25 inches. Any thoughts, comments, and ideas would be much appreciated.
  15. I have so many rocks that I often like to take one and remove as much matrix as I can, to learn more about it. This rock was very interesting! The limestone was very soft and I know for a fact that I removed plenty of small fossils along the way, but I thought I was digging a geode out of the rock (the "original" thing was the dark area). After cleaning thoroughly with vinegar and a toothbrush, I started removing all soft matrix with a dental pick. I was surprised to "break through" to a totally different geode than the one I thought I was digging out! Part of this new geode broke off later, but I was able to see the inside well! :-) I also discovered what seems to be a nice bryozoan fossil? I never did figure out what the original item was - it may still be a geode, but I have stopped for now. I may have seen this before, but just though it was interesting to see the geode and fossil in the same rock. Found in Huntsville, Alabama.
  16. Need help identifying these fossils

    Fossil hunting in Long Creek Hood County Texas, found these (all the same shape) fossils. Are they a pelecypod, oyster, gryphaea? Any suggestions appreciated! It almost looks like a weathered bi-valve. See the last pic I posted.
  17. Arizona Miocene lake bed fossils

    I found these in Miocene lake bed limestone in central Arizona. Palm, reeds and stromatolites have been found in same layer nearby. I see no radial laminations that may indicate that these are algal growths. What are these round cap like structures? @paleoflor All the ones that I have found are round and 3 to 4 cm across. They are all shaped like spheres with the bottom 55 to 60% “missing”. The first three photos are from the top, side and bottom views. The fourth photo is of one still in the rock. The slight gap around the sphere appears to be an empty mold of the mystery object. The last photo is my drawing of what most of the fossils look like. I have an idea of what they might be. Let’s get some other opinions before I give you mine. 1 top view 2 semi side view 3 bottom view 4 in situ 5 idealized diagram
  18. rock consolidation?

    Hello everybody! I have a fossil in a matrix and I want to keep and not to clean free. Does anybody know what to spray on a limestone matrix to consolidate it? Thanks!
  19. Here I am again, with questions on another rock! I can recognize more and more fossils and rocks, but I love finding things I don't recognize. :-) This limestone rock, found in Huntsville, AL, as a portion that has a lot of quartz in it, and a lot of tunnels and crevices. I recognize the crinoid fossils but am not sure about some of the other ones. I have put questions marks on the areas I am wondering about, and asked a question in one image. It also almost looks like there are areas where geods were trying to form, but that may just be due to all of the quartz. Help appreciated! Thanks! Ramona
  20. Dorset fossil hunting trip

    So recently I took a trip to the Jurassic coast in the nearby county of Dorset and I decided to share it with you and record it which I haven’t done before. The location I chose was Bathonian, Jurassic and was the Forest Marble formation. I’m sorry if my fossils seem a bit crude because I haven’t cleaned all the rock off them yet. Most of the fossils in this location are found by either processing the rock or looking on the big limestone boulders which are crammed full of brachiopods and bivalves. As I said, there are plenty of shells but the eventual vertebrate remains do turn up. Particularly sharks, fish, reptiles, amphibians and I know that this location is famous for its mammal remains. Here is a picture looking towards Eype and Thorncombe Beacon and I think that’s Seatown, Charmouth and Lyme in the distance .
  21. My grandparents own land on the Devil’s River in west Texas and I’ve been hunting fossils with them there since I was six years old. When I was younger I thought that these might be fossilized dinosaur bones, but I doubt that now. My grandparents think that they’re plants but I also doubt that. I’ve been thinking maybe they’re some sort of tube worm, or a coral, but I have a feeling that they’re something I don’t know of at all. So, I figured it would be good to ask here with hope that someone will know more than we do. I read this morning that the devil’s river limestone is Cretaceous. The fossil in the bottom left of this picture is a nice cross section of what I’m interested in. The distinct segments or chambers remind me of the structure of an ammonite or a nautilus, which made me wonder if they could be a shelled cephalopod. They seem to be hollow (at least some of them): I found this piece today and was happy to see such a nice cross-section of the intricate wall structure:
  22. what species of clam is this?

    I found this in Jefferson county, Indiana while walking on the hillside about 200 ft up. There are many creeks and brooks with limestone beds in the valleys around the area that are full of fossil clams like this. The fossils on the hillside are less eroded since they are not in water-filled creeks. Most of the fossils found on the hills are in big limestone plates, and are all smashed together and on top of one another, but sometimes I'll find some individual clams like this one and some coral too. This clam is 2.7 cm wide, 2.1 cm tall, and 1.7 cm thick but I usually find smaller ones and occasionally some larger ones, but this is one of the best preserved ones. They have a very distinct M or W shape on the front. Does anyone know what species this is and if its still around today?
  23. This is the 3rd post of features from a limetone/dolostone rock, found loose in a river, presumably carried south from the limestone bedrock further north. If this is just chert concretion, not a fossil, then Q How did the parallel grooves form? The grooves in this feature had been emclosed in soft chalky dolostone material until I removed it with vinegar baths and much rubbing, so were not caused by weathering and are not glacial striae. And last, this is one of several bonelike features in this rock, that I understand are just chert, but the structure of the end looks bone-like to me. It was seeing these bone-like features sticking out of a normal limestone rock that caused me to soak the rock in several vinegar baths and keeping rubbing and brushing, which exposed all the small features with parallel grooves in this 3-post post.
  24. This is one of several features I uncovered in a limestone/dolostone loose rock in a river. Only the "gingko leaf" end of the worm-like feature was exposed: the "worm" was enclosed in soft chalky dolostone that I removed with vinegar baths and much rubbing - so the "worm" had not been subject to weathering. From the Pivabiska River, 20 km north of Hearst, Northern Ontario, Canada, presumably carried south by glaciers from limestone bedrock farther north. I've been told it is a chert concretion, but could it be a chert-ified fossil? Q: If it's not a fossil and just concretion, how did the parallel grooves form? (The other features have parallel grooves too).
  25. This is one of several features (will be 3 posts) in a limestone/dolostone matrix, from loose rock in a river, presumably carried south by the glaciers from the limestone bedrock further north. Pivabiska River 20 km north of Hearst, Northern Ontario, Canada. These features were INSIDE soft chalky dolostone that I removed with several vinegar baths and much rubbing; these features were not exposed to weathering. So my Q is, What caused the parallel grooves? What made the lattice-like inside? I've been told these are chert concretions, but could they be chert-ized fossils? Another post to come...