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

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  1. Sandfossil

    Could you help identify please?

    Found in Muskogee, Ok near the Arkansas river. I originally thought this was just a piece of rhyolite the pink popping through the light gray caught my eye. Thinking its a rock we cut it ooen. Thats when I noticed some patterns and vivid colors and decided to remove the matrix which was pretty fragile. This is what I have uncovered so far. I am thinking this is a type of sponge either a Solenopora or a Stromatoporoidea. And thank you for any help.
  2. Hi there I'm just new to the Fossil Forum. I found this large fossil near the Abitibi River in Ontario. Thinking a sea sponge or Coral. It's large - 1.5 ft x 1 ft w x 8 inches in depth. Wondering if anyone could help with the ID or age. Thanks DB
  3. Mickie

    Can anyone ID this?

    My 13 year old son found this at the beach in Destin, FL. It reminds me of a tooth, but it's not pointed. Any ideas of what this is?
  4. PaleoOrdo

    Alge or sponge?

    I wonder if this rock from very late Ordovicium in the Oslo field, Norway, shows an alge or a sponge? The rock was bigger originally with 4 bumps of equal size, 3-4 cm away from each other, but 3 of them had very unclear surface pattern, so I chopped away that part, showing here the rest. Another fossile from the same formation, 500 meters away (the structure about 3 cm in diameter):
  5. matthew textor

    what is this strange rock I found today ?

    Hi everyone this is Matt again. Today in the creek, I found this strange fossil - I don't know what kind it is. Here are a few photos :
  6. DrogaMleczna

    Sponge, coral or something else?

    Hi! Today I was going through my fossils that I found on beach in Gdynia Orłowo and I found these ones. Are they sponges, corals or something else?
  7. Can anyone tell me what this species of coral is? It's from the Thornloe Formation in Northern Ontario, and is of early Silurian age.
  8. Hi everyone this is Matt again Take a look at this favosites coral fossil I found in the creek today. Here is a photo of the fossil:
  9. Hi everyone this is Matt again. Guess what I found today in the creek? I found this huge coral fossil. I just finished polishing the coral today . Here are 2 photos:
  10. DrogaMleczna

    Sponge ID?

    Hi! I found this sponge on a beach in Gdynia Orłowo, Poland. It was embedded in sandstone.
  11. Hello everyone. I have come across these in my collection and could someone gives me info at all. Possibly just the common name and maybe a rough time period.
  12. matthew textor

    rock with 2 nice corals in it

    Hi everyone this is Matt again. Today in the creek I found a rock with 1 nice horn coral in it and another coral on the right that I am not sure what it is ? Here is a photo :
  13. Found along the shore of the North Channel at Little Current, Ontario. Large, bumpy nodule which seems to be completely formed of (calcite?) crystals all the way through (I'm surprised by the multiple colours, but maybe that's normal?). I'm assuming it's a sponge, though wondering if someone could give a more specific ID or perhaps explain the crystallization seen here.
  14. Found along the shores of the North Channel at Little Current, Manitoulin Island. Slightly domed. Knobby outside, crystalline (calcite?) inside.
  15. DPS Ammonite

    980 Million Year Old Sponges Found

    980 million year old soft sponges may have been found in a reef associated with microbiolites in Canada, pushing back sponge fossils 300 million years. The lack of a fully mineralized skeleton in the earliest sponges may make fossilization and recognition difficult. Turner, E.C. Possible poriferan body fossils in early Neoproterozoic microbial reefs. Nature (2021). https://doi.org/10.1038/s41586-021-03773-z https://www.nature.com/articles/s41586-021-03773-z
  16. Hi everyone this is Matt again. Today in the creek, I found this big rock with a great looking fossil sponge/coral in it. I some how got lucky when I hit it with my hand sledge hammer , when the fossil coral/sponge came out complete from the rock. Here are 2 photos:
  17. Hi everyone this is Matt again. Take a look at this great looking Favosites coral I found in the creek today Here is a photo:
  18. Hi everyone this Matt again. After getting soaked and wet, I found this neat horn coral fossil . Here is a photo:
  19. PaleoOrdo

    Please help ID this fossil

    I found this strange stone in Hadeland in Norway. On it I found patterns of 2 nautiloids and some STRANGE structures. Could it be a sponge? The age is middle Katian, Upper Ordovician. Enlarged nautiloid part, not an ortoconic? The "arm"-structures are on all sides of the stones. Finally, the last side with a rather unusual form of a nautiloid, not so well preserved. Can it be called orthoconic when it expands its diameter so rapidly?
  20. minnbuckeye


    I was cleaning up my "fossil prep room" and found this specimen I meant to ask about months ago. It was found at the base of a Kentucky road cut that had Kope Formation. It is paper thin and actually popped off of the matrix. I then glued it back on. It seemed to look better associated with the trilobit. I am hoping to ID this as specific as possible since it is quite different from what I have found before. THANKS!!!! Mike
  21. Hi everyone I have just started looking for fossils and found one yesterday at Lulworth Cove that I think is really interesting. My Mum told me that the holes in this rock are may be from a sponge but we don't know what type. We also noticed a very interesting shell shape on the side of the rock. Does anyone have an idea what this might be? There are very thin cracks in the rock too and we were wondering if there might be something else inside! Thanks so much for any information you might be able to share. If more photos would be helpful let me know and I can upload mo
  22. Hi everyone this is Matt again. Today in the creek I just found a very nice Favosites fossil. Here is a photo:
  23. kpfransen

    Sponge or Coral

    I found this in eastern Iowa and was unsure if it was coral or a sponge. Anything would be helpful!
  24. historianmichael

    Cliona cretacica

    From the album: C&D Canal Micro Fossils

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