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  1. rkfrace

    Coprolite on Matrix - if it is?

    Hello all! I purchased this fossil several years ago, The location given is 'Glen Rose, Texas, private ranch', and was labelled as 'Lower Cretaceous' coprolite on original matrix. I am 90% sure that the coprolites have been lightly stained with a brown stain. I have dozens of legit coprolite specimens from across the Southwest (but mostly Permian and Triassic), but I have never been convinced that this specimen, which definitely has potential for being authentic, actually is. Any insights you can provide would be deeply appreciated. [P.S., this is the 5th of 5 specimens that I'm posting for ID today; I deeply appreciate any insight that you can provide]. With gratitude, Ryan
  2. Everyone here on the forum knows @Nimravis is very generous with his...um...poop. I was the lucky recipient of a Mazon Creek (Pit 4) carnivore coprolite with a very intriguing inclusion. Does anyone recognize this once tasty morsel? Bug bit? EDIT: The scale bar in the photos is 1 mm.
  3. Pterosaur

    Coprolite, concretion, or scute?

    Hi there! These two rocks were found in the Aguja Formation. Wondering if they could be coprolite, concretions, some kind of scutes (unlikely), or meteorites? Material from the Aguja formation is very foreign to me, so I’m at a loss! They are rounded at the top and flatter at the bottom. Found amongst very large dinosaur bones. Thanks very much! Lauren
  4. I found this in Eastern Colorado between Denver and Ft Morgan I thought it was mudstone, and had a lapidary cut it so I could see a cross section wondering if it could possibly be coprolite this piece is 5x4x4 inches -12x10x10 cm and if it doesn't show well in the images, it is twisted in appearance
  5. Pterosaur

    Meteorite or Coprolite?

    Hi there! This rock was found in the Aguja Formation. Wondering if it’s a meteorite, coprolite, or gastrolith? I honestly think it’s a meteorite, but the fact that it’s not magnetic throws me a bit. I don’t know a lot about meteorites though, so would appreciate any knowledge and opinions! Thanks very much, Lauren
  6. dhiggi

    Whitby Coprolites

    We’ve seen a few of these things before in shale type rocks at Whitby, could they be coprolites? A couple of other finds from today too; a belemnite with pyrite phragmocone and a nice ammonite that I split
  7. hoopics

    Maryland Coprolite?

    Hi, new guy here. Sorry if this post is all wrong, but here goes. My Mom found this on a sandy beach on the Maryland side of the lower Potomac River. Is it a coprolite, a rock, or something else? Thanks.
  8. Okay, this may be just wishful thinking, but a girl can hope, right? For your viewing pleasure is an Upper Cretaceous coprolite from the North Sulphur River in Texas, Ozan Formation, Talyor Shale. This little beauty has some unusual fish remains. Any chance this is a caudal fin from a coelacanth? The bones are pretty substantial compared to other fish bones I've seen in coprolites from the area. It does contain scales that are good sized and pretty transparent, with kind of a fingerprint pattern. Obviously, they may not be from the same prey item. Can anyone tell me if these are indeed coelacant bones? If so, do they look like those from a caudal fin? Other thoughts? @Fossildude19 @sharkdoctor @Carl Image 1:
  9. Hi Friends, A few months ago I spent a few days’ time on the North Sulfur River and I’ve added some potential coprolites to my collection and wanted to share what I’ve found so that maybe it will help someone be able to identify similar finds there. I picked up anything that I thought looked fossilized and after a few trips I had quite a bit to go through and attempt to identify. Subsequent trips I picked up less and less because I knew what to look for. #1, 2, and 3 are all from the North Sulfur River – Ozan formation. #1 was found in the redzone, while #2 and #3 were found loose in the river bed. I'll start with #1 then add the other two in subsequent posts. #1: Top view #1: Bottom view: This one seemed highly likely to me and has white matrix around lots of black fossilized material contained in the redzone matrix. I happened to tap it after removing it from the surrounding matrix as it seemed like a concretion and found a small tooth inside (orange arrow). I decided to prep it out and find out what else I could discover within. After a few hours picking away through the 'poop' like matrix I had found a vertebra and parts of a shell as well as a considerable amount of unidentifiable fossilized matter. I think I was right about this one. #1: Identifiable finds. Left to right: Tooth, most likely fish., Vertebra, two gastropod shell fragments. Scale marks in mm. #2: Seems likely to me, but not sure. It could just be the remains of a fish or something and not necessarily a coprolite. Top view: Bottom View: More to follow...
  10. @Gizmo and I had a collecting trip cancelled, so we decided to head to Liverpool Point to fill in a few missing species in our collections. Once onsite, we met up with @FossilsAnonymous and @MomAnonymous to do some collecting. There was a lot of sand in most locations, making for a slow but steady day. I found a lovely little Heterodontus cf lerichei early. @FossilsAnonymous was my lucky charm for interesting coprolites. We came across a fairly bare area and I found most of the coprolites below within 10 or 15 minutes. The coprolite below has some scratch marks and possible feeding traces. Its reverse side has vertebrate and invertebrate feeding traces. At least one invertebrate feeding trace seems to have both mandibles recorded. Below are two unusual pieces for this site. They look much more like coprolites found in Virginia Paleocene deposits. Some fish coprolites and possible pseudo-coprolites. Coprolite. Coprolite with compaction visible Coprolite with feeding traces Some lovely orange and grey teeth.
  11. Aloha! Planning a short trip to California before I move further away, I was always fascinated by fossils. Are there any dig sites in California that rent out tools? I would love to find a trilobite or ammonite! Any tips would be greatly appreciated!! Thanks!
  12. PrehistoricWonders

    Possible coprolite!!!!

    Hi everyone, I was wondering anyone could tell me if this is just a rock, I think it might be coprolite!!! it was found at ramenessin Brook. tia.
  13. Found on Mappleton beach a couple of years ago. Planning on giving it to my Dinosaur mad granddaughter for her eighth birthday any info appreciated thank you
  14. I purchased this beautiful pile of poo pellets, and the matrix contained this little hitchhiker. Since I know next to nothing about trilobites, I was hoping for an assist. He dates from the Middle Ordivician (Llandeilian), and was found in the Traveusot Group (Angers), in La Meignanne, Maine-et-Loire, France. I don't know if the second photo is more of Jaques or just another trilo-bit. Thanks for indulging me. Yeah, I'm digressing.....
  15. Hi All! Could you please help me to ID this specimen that was found 2019, Miami Beach, Gold Coast, QLD, Australia. I'm hoping it is turtle coprolite from the pliocene. I have other pieces if that would help. Thank in advance!
  16. I finally got some time off and had a nice day to hike the North Sulphur River Texas. I hit the fossil park which is the most hunted location but I still managed to find some good stuff. The big piece of coprolite is loaded with shells in it. I really like the well preserved Glyptoxoceras heteromorph ammonite and the big Tylosaur vert.
  17. XXFOSSILKINGXX

    Possible Coprolite or just mud cracks?

    Picked this up in Arizona, and I unfortunately do not remember exactly where. I initially thought it might be a coprolite, but looking at it now it looks like it may be just a lump of preserved mud cracks. Any ideas on what this might be, or what would cause a rock like this to form? The rock is about 4.5x3x2 cm and shows the cracks on all sides.
  18. New way to identify that coprolite as long as you can get some DNA out of it. Can tell difference between dog and human. https://phys.org/news/2020-04-feces-coproid-reliably-sources-ancient.html
  19. old bones

    Even more Cookie Cutter creek finds

    Here are a few more of my recent Cookie Cutter matrix finds. I am curious about what kind of fish has / had teeth like the one in this photo. And I am thinking that this is a bit from a fish, possibly a mouth or jaw part. Seems too thick for something like an operculum ... any guesses? And finally, are either of these specimens coprolite? @GeschWhat Thanks for looking.
  20. BenWorrell

    Devonian Burrows? Fish Poo?

    ID help please! I recently found these strange features in a Devonian rock in Johnson County, Iowa. They are unusual looking enough that I suspect an animal may have been involved in their formation. My first guess was that they were burrows that had filled in with dense crinoid and shell debris, but I'm not sure how that would happen. My second guess was that it could be poop/coprolite from a fish or some other Devonian creature. I didn't have a scale with me, but these would be very large for fish poop. I will post another photo in a separate post below (files are too big). I would be very grateful for any assistance, thank you! Here is a link to a video that may also be helpful:
  21. Randomguy123

    Coprolite or meteorite?

    Hi, I found this in a creek in Austin. It's very dense and has lots of smooth bumps. I was wondering if it was maybe Coprolite or maybe a meteorite. I tested to see if it was magnetic but I couldn't really feel anything. It's about the size of a golf ball. Can someone help me id this? Thank you!
  22. Hello, I was trying to find the identity of some marine fossils I found, and found this great forum! I am from Montana, but have been wintering in Yuma, Arizona. I have been finding all sorts of neat rocks and marine fossils in the desert outside of Yuma where the Colorado river had once flowed into a large ocean. I have found several roundish rocks that seem to have fossilized marine life in them? I was told by a Coprolite collector that is a characteristic of Coprolite found in this area? I would appreciate an ID on the specimens, or speculations as to what they are? Below is one specimen, different angles, notice the square holes!? Thanks!
  23. ricardo

    Coprolite

    From the album: Coprolites

  24. ricardo

    Coprolite with vertebra

    From the album: Coprolites

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