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Found 6 results

  1. Pliosaur tooth?

    I just saw this could it be a pliosaur tooth, measures 3cm long and found in Russia?
  2. I have been unsuccessful in getting information about this on the general internet (the All-Knowing Google failed me, AGAIN! ). How in the world can you tell if a rock that you have in hand is a stromatolite as opposed to just a rock with striations- like agate or something? Especially if the stromatolite has had a section cut and polished?
  3. Pterosaur tooth or mineral?

    Hi, I found this while looking through some North American cretaceous gravel along with a serrated rex tooth fragment. Does anyone think it's a pterosaur tooth or a mineral, apologies if the pictures aren't good thanks in advance.
  4. Claims of a mammoth tusk...

    Posting for an acquaintance. Someone claims this is a mammoth tusk, and they're 100% certain. I'm not so sure. I've seen mammoth tusks in museums, and up close and personal digging one out of the dirt. I don't remember longitudinal striations like this object has. Can anyone tell me what it might really be? Or confirm if it's actually a segment of a mammoth tusk? Best pictures I've got, 3rd party source.
  5. The following set of photographs is of a roughly 5-inch x 5-inch x 7-inch limestone fossil. I found it in Eastern Anatolia along the Turkish-Iranian border near the village of Uzengili. It exhibits striations from what I call "top" to "bottom", although there are some (only 2 or 3) horizontal striations that seem to have a replacement material akin to quartz, in that it appears clear (but very thin). At first I thought this was a coral, but I am beginning to wonder if it is a Stromatoporoid Sponge... however, it could be something entirely different, and that I why I am presenting photos of it in this forum to see if anyone recognizes this morphology. The following photographs show the fossil in rotations of 90 degrees (which I have labelled North, East, South, and West for reference). I also have a "top" and a "bottom" view, although what I label as the "top" may actually be the "bottom" if it turns out to be a sponge and not a coral. Of note are some tiny features along the "bottom". These features may be part of the fossil, ore perhaps they are growths of some other material that has leached out of the soil and onto the fossil. These features seems quite well integrated with the rest of the limestone. What is curious is the fact that the "bottom" looks like it is a fracture, in that it is smooth with few features other than some parallel striations. To have these intricate features survive on a fracture plane seems odd to me and that I why I am suggesting that they may be leached material. I am an engineer and not a geologist or paleontologist, so some expert identification help would be appreciated.
  6. Sea plant

    Found in creek in west central IN. The second picture near the 2.5 mark looks to be the 'stem' end as the lines radiate from it.
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