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Found 249 results

  1. Fossils, or...?

    I tough these two "things" were coprolites (cut and polished), but after taking a look at past discussions here I'm no longer sure. On other other hand, I don't know of minerals that would grow on a spiral. What do you think? Diameter is about 10cm and 5cm, respectively. No idea about provenance - both bought at flea markets in Germany. Thanks in advance
  2. Is this coprolite?

    I'm still trying to get familiarized with coprolite. I found this in a lake that is being dug. It was around sharks teeth whale bones etc. It's very dense, has a nice color to it and seems to have a spiral formation starting but it's hard to tell because it appears to be broken. This was found in Venice Florida. Thank you in advance.
  3. Siderite or Turtle Coprolite

    My sister purchased this from a rock/fossil shop in Oregon. She was told it is a turtle coprolite from Madagascar. Though I am a VERY amateur rock and fossil collector, I questioned whether it is a coprolite. It is very heavy for its size and non-magnetic. After doing some research, I have come to the conclusion that it is Siderite from Salmon Creek, Washington, USA. I am doing a Rock and Mineral Show and Tell for my sister-in-law's 5th grade science class and want to make sure my identification is correct. Would anyone like to weigh in on this? I would appreciate feedback. Thank you.
  4. Hello, this was from my grandfather, and I was never able to figure out what it really is. It was found in São Gabriel, Rio Grande do Sul, to the extreme south of Brazil. I particularly think this has an organic appearance, which is why I came to ask for help identifying what might be (I apologize for the quality of the photos and the macro) Size: 15cm x 9,5 cm
  5. Dinosaur Coprolites from China?

    These are being sold on online for $10 as dinosaur coprolites from China. Any opinions?
  6. Callianassid burrows

    @GeschWhat @Carl It has been cold, but the shrimp (callianassid) coprolite burrows I find have been relatively plentiful (more than decent sized shark teeth) with recent strong north winds and low tides. One puzzle to me is the variation in diameter of the burrows. Carl, our expert, believes the coprolites just sank and deposited in burrows (at another site I have found a few steinkerns with similar, sparser deposits. ) All of the burrows I have found on the Rapp beach have been cylindrical, or possibly pieces of cylinders (of course, this could be bias in my collecting, but I examine lots of stuff!) Usually the coprolite deposits are thicker on one side (the bottom?) of the burrow. If the burrows are truly made by the callianassids (Carl says no, others may argue) I expect the coprolites in the big burrows to be bigger than those in the smaller burrows. I have collected enough to get a tentative answer, but need to align by brightness for comparison photos (some burrows and coprolites are very light, some are dark). Here is what I have collected so far:
  7. Inherited collection

    Hello everybody, Thank You for having me I inherited all these, and to be honest, I've had them a long time and never really looked at them. I was cleaning up and started to examine them and haven't been able to put them down. When she was alive all she wanted to talk about was these rocks. I wished I would have listened because now I have very little info about them. Thank you for any recommendations on where I might have them looked at and identified? I look forward to hearing from yall. Nevermind there must be a way to upload more pics?
  8. Coprolite? Bearpaw fm.

    About a year and a half ago I found this rock that I highly suspect might be a coprolite. However, I figured I should get some second opinions, as I'm not very experienced with identifying these, beyond looking at it and thinking, "Yep, looks like a turd to me"... It seems to exhibit evidence of compaction and pinching though, which is what really prompted my diagnosis. Funnily enough, this is also what made me think it might have been a meteorite when I first found it. Anyway, it was found in an area where the late Campanian marine Bearpaw formation outcrops, but was among some glacial drift so I can't correlate it with a specific layer, or even with the Bearpaw formation itself. The size and shape indicates to me that it must be from either a plesiosaur or mosasaur, as it lacks the characteristic coiling of a shark coprolite. I also had a chance to look at this one under a microscope (no photos unfortunately), and noticed small flakes that had a superficial semblance to the iridescent, aragonitic nacre that's often found preserved in the molluscan fossils from the area (you can sort of see these in the second photo), which further makes me think that this is from a mosasaur. Thanks.
  9. Coprolites??

    Thinking it's shark, wondering what type of if is and thoughts about it. I'm going to post more in the replys since I can't load all at once. One of them is different then the others all found in Venice Florida.
  10. I managed to get in a few hours before the rain hit at the North Sulphur River Texas. My buddy found a rare Globidens tooth. I found a high quality shark tooth and some coprolite.
  11. Cretaceous fish coprolite?

    Found this at Ladonia Fossil Park. Thought it was just a phosphate nodule but I've recently seen similar fossils labeled as fish coprolite. ID assistance would be appreciated, thank you for your time.
  12. Coprolite

  13. Everyone said NSR was dry and picked over but I hiked 9 hrs and found some cool stuff. My favorites are the Protostega costal bone with partial rib head preserved, the mosasaur bone with bite mark and the artifacts. I walked in tracks all day but the river is too large for someone to get everything and people miss quite a bit.
  14. Hi all, I was on the bank of a creek west of Festus, MO and I found this odd looking rock. It was partially buried in the mud. I didnt think anything of it until my wife said "that thing looks like a turd." I began researching coprolite and I'm curious what your thoughts are. I've always loved pre-historic history but my knowledge of fossils is extremely limited, to put it lightly. There is a crack that runs along the back in which there appears to be a quartz-like material. Any information or opinions would be much appreciated!
  15. Coprolite?

    Could this be coprolite? I found it near Mankato, MN.
  16. Egg or Coprolite or Something Else?

    I picked this up in a second hand store of all places her in south(Coastal) Alabama, so I don't know where it originally came from. I've never seen anything even similar around here. It's a decent size...about 4.5" x 2.5" x 3.75" (114mm x 63mm x 95mm) and seems heavy for it's size...21.6oz (614g). Whatever it is, it appears to have petrified bones or fragments (looks more like whole bones) inside it. It's asymmetrical in shape with a textured outer surface and some holes that show some of the inside. The coin in some of the pics is 1 inch(25mm) across and some of the photos were taken of the item wet to show color better. I have a lapidary saw and was thinking about cutting it open, but I'm afraid I'd ruin it if it was a fossil that was better left intact. I know I don't have much information to go on but any help identifying it greatly appreciated.
  17. Meg and the funky coprolites

    A few highlights from a quick trip to an eastern Virginia stream with @Gizmo. Found loads of coprolites. The shark coprolite in the upper left has peculiar pitting on the surface. The shark coprolite in the bottom right shows potential striations from the spiral working of the gut, pitting and the inner coil of the spiral. The large central coprolite doesn't look to be from a shark, does show some striations from possible gut lining or gut movement/emptying and lumpy little inclusions. The two larger teeth are from the boundary of the Eastover and Calvert Formations. The remainder of the fossils are likely from the Newport News Beds (Popes Creek Sands equivalent).
  18. Hi everyone. I found these which I think are coprolites and some pyritised wood. Possibly a bird bone as well as one piece is hollow. Thanks for the help!
  19. Coprolite???

    Hello Trying to figure out if this is coprolite! Just one of the fossils I found this last Weekend. I find most of my fossils ironically while metal detecting. I'm new to the forum and look forward to talking and sharing!
  20. Mecca Quarry Shale finds

    I had a great time hunting with ESCONI at the Starved Rock Clay Pit. It exposes the Pennsylvanian aged Francis Creek Shale and Mecca Quarry Shale. There were tons of concretions lying around, but we were told they are usually empty and rarely split well, so I didn't bother. I was really there for the black shale anyways. I found a bunch of bits which may prove to be more interesting after prep, but here are the more exposed finds of the day. I am not familiar with this fauna, so I was hoping to get help with IDs. #1) I found a few similar specimens. Best guess is coprolite. #2) Not sure if this is a fossil. Maybe coprolite or an arthropod carpace. Or just a mineral stain.
  21. A poo-tastic day

    @Gizmo and I had a chance to get to a couple of sites in eastern Virginia during the super dry conditions that we are having during August. We hit the water early, after a rare cooler night. The mist over the stream made navigation a little tougher, but the view was beautiful! I had a moment of clarity in understanding that a strong part of my love of fossil hunting is that it takes me to beautiful and wild out-of-the-way places. The water conditions made for some interesting finds out of the Calvert Formation. We did some bulk sampling for a museum project but mostly got in some surface collecting. Some highlights below. The coprolites really made my day! I came away with a bag full, but the big butt nugget in the first photo made me holler like I was stung when I first saw it. As usual, posting as-is due to a lack of time and interest in prepping at the moment. Coprolites of various types, an unusual axis and a nearly complete stringray barb A couple of interesting teeth
  22. @Gizmo and I had fun day on a stream in eastern Virginia in July. After emergency renovations on my home, I was in bad need of some restorative time in the field. For about two months, the only fossil hunting I got to do was vicariously through the TFF Trip Reports I've been so focused on coprolites and other aspects of collecting that I am behind on prepping teeth and bone. However, thought I'd share some finds as-is. Below are a few highlights: The larger tooth was found in situ in the Calver formation and has some pretty spectacular feeding damage, including a triangular bite mark and serration scrapes on the enamel: Some odd turtle bits, including a humerus: An ocean sunfish beak:
  23. Hey everyone, I am thinking of purchasing this dinosaur Coprolite but I want to make sure it is authentic first. The tag didn’t mention where it was from. Thanks!
  24. Bones in coprolite

    This is from zephyrosaurus. Here is a photo of it. Thoughts ?