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Found 143 results

  1. Hello everyone, I will be going out for the first time to collect the lower Devonian Helderberg Group. I am wondering about which chisel and geology hammer are most appropriate for splitting the rock. Any help is appreciated. Joseph
  2. Mold Fossil of Shells?

    Hi, I'm a rock collector/hunter and found many of these shell imprints in limestone rocks on the beach. This one looked like a bullseye or pictogram. Is this considered a fossil? Does anyone know what type of shell and/or geological time period? Thanks!
  3. Fossil ID Ammonite?

    After walking 2+ years by the same spot, just noticed this, yesterday. It sparked an interest, but I know absolutely nothing about fossils. Is this a normal size for what I think is an ammonite? Found in Northwest Austin, Texas near the bank of Walnut Creek. I am assuming it’s limestone. Grandfather’s hammer is 37 cm.
  4. Graptolite?

    I collected this last year at Partridge Point (Alpena) Michigan. Middle Devonian. Thunder Bay limestone formation. Is it possibly a dictyonema crassibasale? Or merely a bryozoa?
  5. FOSSIL ID - N. Bulgaria - bivalve?

    Hello fellow fossilers, I am currently staying in northern Bulgaria, around 30km south of the Danube and there are a some limestone formations close to another local river. I found this fossil and am very curious to identify it! Perhaps it is some sort of bivalve animal but would be great to get some more information. Any thoughts?
  6. Help me figure this one out

    So, occasionally at work I scour the land for fossils. The land for the port of Tampa has been dredged up from the gulf of mexico, and I have found numerous fossils and artifacts. I have ran across two of the specimens that I'm showing you now. It's something geological, I can assure you. I can't find any answers in the UF books or websites for what this may be. I think it is more recent as it has been found with modern bivalves. It is encased with limestone which fisses with vinegar, but the actual ball does not. It is a sphere, but not perfect. Help me figure this one out, or at least point me in the right direction! Cheers!
  7. No clue on this 2-inch (5cm) mystery invertebrate in a cross-section of rudist-bearing Cretaceous limestone. Origin unknown, since the photo is from a Chicago CTA station, not a proper outcrop. Any insights appreciated! but please provide your reasoning or evidence.
  8. Recently picked up a cheap piece of matrix from the famous quarry in St Petersburg, Russia. I thought I'd give this one a go. It already had some damage on some of the axial portion, so I knew this one wasn't going to be an immaculate specimen when done. Here is what it looked like when I got started:
  9. Fossils in Swedish limestone

    Hi Guys, My Swedish limestone floors are full of fossils. Mostly ortoceratit but I have a couple I haven't been able to identify. First on out is the one I call "the tooth" or "The middle finger". The second one is what I'm calling the Jelly fish. Anyone know what fossils theese are? Attaching a overview picture of the floors aswell, perhaps someone sees something nice.
  10. Good looking gastropod needs id

    Hello from Cyprus, this one I found near the old limestone quarry in moni area, again the heavy rain , when the mud sliding settled, it exposed a piece of it. 3m under the usual surface It is quite big and very well preserved. In the same wall I found also another kind of gastropod, corals, 4 kinds of bivalves. I will post on other threads soon. That wall consisted of beige/white earth and grey hardened sand like parts, still needed metal needle tool to scrap it off, of some specimens. Also most specimens are whiter that what I am used to find. Which i think it could be fossils, yet younger ones, like 80-100k years old?
  11. Big gastropod

    Hello plz share your thoughts on this one It is a gift from a friend, who doesn't remember where exactly he found it, however he thinks it was Akamas Peninsula in Cyprus.
  12. Strange chip

    I found this as is. It seems like there could be something that caused the limestone to chip in this manner. Possible creature? Both sides display similar patterns. Any suggestions on cleaning without damaging possible fossil?
  13. Okay, help me out here. Somebody posted the following images on the Fossil Forum Facebook group. Not the best pictures in the world, however, the ribbing, keel and overall appearance make it clear that this is an ammonite. However, somebody on the group, claiming to be a highly qualified expert, says that this is in fact a nautiloid, pointing to 'the sutures' as proof. I don't see any sutures, but he says that the ribs are 'external expressions of septa'. Now. I have been wrong before. But, unless I'm slowly succumbing to madness, this is an ammonite. As clear as day. This highly learned man tells me that I am uneducated and don't know what I'm talking about. He is presumably just trolling, but I'm never one to back down from an argument under any circumstances, so I would welcome a second opinion. At the very least, I can pop off down the doctors for a referral to a suitable brain hospital, if it turns out that I've started to confuse different types of cephalopod.
  14. Hello all, I was cleaning off the matrix off a bivalve I found some time ago in a the Guajataca River in northern Puerto Rico. This is a sample of shaley clay from the San Sebastian Formation and dates back to the middle(?) - upper Oligocene I was wondering if anyone would be interested in the matrix I cleaned off. it's a small sample ~4.0 grams of matrix. I can ship it to someone in USA that wants to look at it and see if they find anything interesting micro fossils. If any one else is interested let me know, I can eventually ship some more matrix from the same or other locations once I get back to collecting. I will pay for the shipping to USA
  15. Devonian(?) brach chunk - location?

    I'm revisiting an old chunk that I acquired some years ago in a batch of assorted fossils, some without names or locations. I posted this one a while back but there are newer members now, so thought I'd see it there is any more insight on it. It's nothing spectacular, and I need to make room so am thinking of passing it on, but before I do it'd be nice to have a better idea of the location. Does it look like something that could have come from Arkona, or is it more likely to belong with the 'Rocky Mountain Corals' I got in the same lot? It's classic heavy, clinky limestone. Hopefully the pics are ok (and not too big).. The sun has not exactly been plentiful here lately and won't be for some days yet, but I have to get this show on the road so I'm relegated to taking imperfect pics indoors, again....
  16. Looks like petrified wood chips?

    Our class found these along the creek walls that border the school's property. They look like large petrified wood chips, but we are wondering if you can tell us what they might be. Part of the schools property is considered preserved wetlands. This might be a reason these are here.
  17. what on earth could cause this?

    Ok while separating already cracked limestone slab pieces at a fossilferous area, I found this, it is 30cm one side to the other. Ok the coloring can be fungus or something alive, but the actual design you see, is not flat, it has depths as if carved on the stone. any ideas?
  18. sponge/coral/sea plant

    2 photos of this. is 2.5 cm tall, in the area which is 3-5million years range i found also a lot of the 3rd photo, oysters and other fossillized stuff.
  19. Bones maybe

    Ok here are some interresting finds, I suspect they are fossils, suspiciously looking like bones, some occasions there's indication of merrel. Location: edge of Moni formation, 3km from sea, 3-5million years old. Under the very end of a series of limestone slabs, in a layer of mud. All in a 2 square meter radious, attaching also some I could not remove from there. diameters vary from 5mm to 35mm and the longest is 20cm. Near by I found also oyster parts and other bivalves and a couple of plant shaped white material embeded in stone. here we go: 1) all together 2-4) sample 1 5-9) sample 2 see next post for the rest
  20. Backyard Boulders

    Are these concrete or sediments? These were discarded when they re-modeled the common grounds where I work. I could possibly procure them because they want to be rid of them and I have a truck capable of carrying them. Would they be worth the time and energy? Dew bottle included for scale.
  21. I’ve stumbled across similar pieces of limestone throughout the years, but never have been able to figure out what they are. This piece of whatever it is is by far the largest and I honestly don’t have a clue as to what it is. This and similar finds only ever seem to have grooves or striations around the edges and nothing regular (at least to my perception) on the top or bottom which leads me to think they are probably of a geological origin, but I have never come across anything that matches these oddities... As stated in the tags I found this in a creek (near Auburn, Nebraska) which I know complicated things but other pieces of the same (or at least similar) material were from crushed up Oread limestone (Shawnee Group) from the Plattsmouth member which produces Carboniferous fossils. Any help would be appreciated! Curse the attachment size limit!
  22. Hi everyone, I made a trip in the Judean Mountains around the city of Ramallah yesterday. It was there that I found this specimen. The scale provide is in cm: the specimen is about 6 cm long, that is about 2.5 inches. I found it on a high hill at an altitude of about 800 m (2600), on the ground among countless rock fragments. The hill was subject to severe erosion and bedrock was visible all over with patches of earth and smaller rocks in between. The rock seemed to be limestone, with many features that I as a novice can only describe in the most casual terms: many spherical holes turtle shell pattern on the surface of rock large and small pebbles embedded in the rock, apparently slightly more resistant to erosion I would like to ask you the identity ofthis specimen, and would also be interested to read tips on how to identify promising spots to find more fossils based on altitude, surrounding rock, layers... Thank you for your time!
  23. Fossil ID Help

    Could I have help ID this please?
  24. Please help me identify

    Hi, I found this specimen in a place I usually find ammonites, nautilus and sea shell. I'm not sure what this is, even not if this is actually a fossil... The matrix, and the outer part of the specimen itself is limestone while its interior is flint. I tried to carefully remove some of the matrix using a cp engraving pen... but the more I uncover it the less I understand what it is I'm looking at... and I'm really curious :-) I've attached a colleague image with pictures I took from different angles... Anyone has an idea? I'd like to hear from you! Thanks...