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Found 16 results

  1. (Edit: I initially reported this specimen was found in Golden Shores Arizona, that is an error, it's origin is most likely Australia.) I am stumped as to what it's origin might be, any help would be greatly appreciated.
  2. Raysun

    Geologic?

    Found near the.organ mountains in Las Cruces NM and the area is around 36 million years old. Looked odd but probably box work.
  3. Andúril Flame of the West

    Possible Trace Fossil

    Hello all, A few months back I happened upon an intriguing rock while taking a walk in the woods. The main groove on the front of the rock struck me as a possible trace fossil (perhaps a worm burrow or a tunnel created by plant roots). I considered the possibility that it could potentially be a fossil since it was found in the Newark Supergroup of northern Virginia which is know to have some fossiliferous rocks. However, I fully expect that it is simply an artifact of weathering or that it has a geologic origin. Can any confirm whether it is a trace fossil or simply a case of weathering? I’ll tag a few members that I feel are knowledgeable on this subject: @Fossildude19 @EMP @cck @WhodamanHD I deeply appreciate all input.
  4. GreatHoatzin

    Fossil or geologic formation?

    I’ve been going through my drawer and I rediscovered these guys from many years ago. I have no idea where they are from or what they are (except that I picked them up from somewhere on vacation when I was young). I don’t know what to make of the smooth hole going down the centres. I’m interested in your thoughts on this.
  5. MrR

    Jalama "Rossil"

    Greetings all. In the spirit of tricks and treats today, I figured I'd post a slightly disingenuous ID question. Or maybe someone will surprise me and tell me that it actually is a fossil, rather than a "rossil". I'm not holding my breath. I was camping at Jalama last week, when it was pushing 90 degrees on the beach. It was a pleasant couple of days but the weather made it less so than one would expect. I did end up breaking up a few cleavable pieces that came from a fresh fall at the back of the closest cliff to the South side of the campground, but found nothing. And it was too darn hot, and my old back was protesting the whole thing, so I gave up on breaking rocks in pursuit of Jalama's famous "exploded fish" (That was for you, Doren. RIP, buddy.). Instead I just took a little walk on the sand with my partner. Aside from the joy of the Jalama beach hopscotch, i.e. skipping around and over gobs of tar seeps, we were just looking for interesting rocks, shells, etc. One thing I found was a thing I'll call a "Rossil". (I'd be surprised if the term hasn't been used before.), I'm 99.99% sure that it is indeed a "Rossil". I just don't know what it's from. Anyway, it sure looks a lot like a vert, perhaps caudal, but it is very flat on one side. Of course that could be from the absolute geological crushing it has been taking through eons as it "rossilized". So, what do the experts think of my rossil? Keep it friendly, folks. Happy Halloween, all.
  6. diginupbones

    Poo or rocks?

    I know this is a longshot but I had to ask. I searched the web and couldn’t find anything similar.
  7. Here is a weird looking rock or didn't know if it could be a type of algae or not. It is very bumpy like where the wormy looking thing is. Curious if anyone could give me any info about it. Found South of Muskogee, Ok. Pennsylvanian lower age, I think it is Bloyd formation. Thank you for any help.
  8. Woogie

    What could this be?

    Hello everyone, just wondering what this could be? Thanks, Mark
  9. I have seen this for sale online Seller got it from an old collection and has no provenance info. He has no idea where it was collected or formation info is this some sort of geological formation ? Or is it a genuine Stromatolite ?
  10. Top Trilo

    Fossil or geologic

    I was looking through some of the rocks I have collected over the years and came across this one, appears to be an ordinary rock but with a strange fracture, it doesn’t look like a rock that would hold a fossil and the shape doesn’t remind me of anything which is why I’m pretty sure it is just a crack in the rock but I thought it odd that it was symmetric, since I am not 100% sure it’s a rock I thought I’d ask here scale is in mm, about 5 mm long first image shows the whole rock 2nd image shows another view of the rock 3rd image shows the fracture with scale 4th shows fracture from a different angle
  11. I see on the web many deferent looking specimens being sold as Dino Coprolites. From what I’ve read on the web, most of these specimens are thought to be purely geologic. I was able to purchase 14 slabs labeled as Dino Coprolites from Utah for a very reasonable price so I bought them to see what I could see under a microscope. Chemical analysis and analysis of thin sections are much better ways to approach this. The individual pictures of the below 5 slabs (one is an end cut) were taken with the pieces wet and the close-up pictures taken with my microscope were taken with the pieces dry. These slabs are unpolished which makes it more difficult to see clearly the inclusions and other features in the below pictures. However, the pictures do show the vivid colors of different minerals and crystal structures on the surface of these pieces. I’m not seeing inclusions that look like the remains of a dino meal. However, there are some really interesting circular shapes in the pieces. What do you see in the pictures? Do you believe that any of these slabs could be dino coprolites? I have 9 more of these slabs that I could take pictures of if there is any interest to see more examples. Slab 10 (170 grams 4.75 inches x 3.25 inches x 5 to 8mm thick Continued in next reply Marco Sr.
  12. Megalodoodle

    Septarian Nodule

    Pretty confidant this is some kinda septarian-something-or-other. Got it out of a bargain bin, unlabeled. I doubt its a fossil.
  13. dinosaur man

    Placoderm bones/armour?

    Hi is there any possible way this could be pieces of Placoderm armour or bones? There very different from what I usually find in the area and seem to be vertebrate in origin if it’s not geologic.
  14. I'm not sure if this is a nice pattern or perhaps a fossil? Many thanks.
  15. dinosaur man

    Finger or Toe bone?

    Hi is this Geologic or fossilized?, if it’s fossilized, what did it come from?And if so would it be a finger, or toe bone? Thank you!!
  16. Hey everyone. Maybe someone could clear this is up for me. A. "When I look on a geologic map and see MzM (which means Mesozoic marine sedimentary rock.) Does that mean anything from Triassic to Cretaceous? If so how can I be sure when I find a fossil which date it is from? (other than the obvious of course which is to identify the species and find what date its from) B. I also see metasedimentary which is Precambrian and Silurian etc. Those rocks are "Meta" sedimentary which means they were sediments good for fossils but have been subjugated to high temperatures and pressures which Should destroy fossils. Do you think there are fossils in that metasedimentary rock or should I stick to just sedimentary. C. I found these fossils from the what I thought was the Eocene period on a hill (intermediate of hill and mountain) of a few clams and turritella inside a sedimentary rock. People who live in the nearby area talk about how millions of years ago the spot I collected at used to be a shallow prehistoric ocean. On the map it says tertiary (old word for Paleogene), which means 66 - 2.5 million years ago . When I use the website "(http://dinosaurpictures.org/ancient-earth#240)" It shows that the spot I collected from was and remained land until 90 million years ago when became a shallow ocean. which would be cretaceous. The fossils I collected were all marine and were far from the real ocean. How is it that I found marine fossils in Paleogene sediment which was not shallow ocean since 90 million years ago. I would imagine a river or stream but these fossils look very "Ocean like" (I do know that's not a valid way to determine a fossils origin) Anyways if anyone could help me out, that'd be great.
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