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  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

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Found 15 results

  1. 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 ?
  2. 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 frac
  3. 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.
  4. 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.
  5. 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.
  6. Fun little globe webapp that lets you enter a location (city/town) and identify that location on a globe based on the time period you select. Very helpful to visualize why you might be finding the types of fossils you do in a given area. https://dinosaurpictures.org/ancient-earth#105
  7. I'm not sure if this is a nice pattern or perhaps a fossil? Many thanks.
  8. 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!!
  9. 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
  10. Me again guys, I have a few fragments of a copper like color, smooth but porous on the inside specimens which i thought might me coprolites. It could also be geologic, smelting bog or something. But found well underground near the Testudines Sp. fragments posted on Saturday. Could you take a look and give me some ideas?
  11. Does anyone know where I can find on the web a chart or table that lists shark species versus geologic time? I have searched but just can't find one. It would also be helpful if the table would show lineage as is presently believed to be accurate. Thanks!
  12. 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 c
  13. fossilnut

    ID Help

    I found these pieces a number of years ago. All from the same limited area. Never have found any since. No one that has seen them can offer an ID. Interested in member thoughts. Thanks
  14. Jdeutsch

    Geologic or sea life

    I collected this in a canyon in the Black hills of Eastern Wyoming. I don't usually think of fossils in that region, but there happened to be a limestone column with some brachiopods about a half mile from where this rock was found, suggesting a marine environment for some of the rocks in the area. I can't tell which geologic strata I was in, as things change quickly in the Black Hills http://pubs.usgs.gov/sim/2777/downloads/2777_sheet1.pdf , and there is material washing down the canyons all the time. This was in a dry creek bed. approximately 20 cm across, 10 cm wide and 10
  15. This little specimen is just 5 mm tall, and 8 mm at its widest. This comes from a chunk of matrix that I picked up in the chalk deposits in the area of Demopolis, Alabama. Having found an enchodus fish tooth in similar material, I'm making an effort to break up and look through this stuff a bit better before throwing it away. This particular tiny thing was left behind in after leaving some pieces overnight in a white vinegar bath. The chalk dissolved away, leaving this. Note the fibers scattered around it - those have come from the specimen. I'm 90% sure this is simp
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