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  1. DrogaMleczna

    Sponge ID?

    Hi! I found this sponge on a beach in Gdynia Orłowo, Poland. It was embedded in sandstone.
  2. 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.
  3. 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 :
  4. 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.
  5. Found along the shores of the North Channel at Little Current, Manitoulin Island. Slightly domed. Knobby outside, crystalline (calcite?) inside.
  6. 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
  7. 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:
  8. 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:
  9. Hi everyone this Matt again. After getting soaked and wet, I found this neat horn coral fossil . Here is a photo:
  10. 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?
  11. minnbuckeye

    Coral/Sponge?

    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
  12. 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
  13. Hi everyone this is Matt again. Today in the creek I just found a very nice Favosites fossil. Here is a photo:
  14. kpfransen

    Sponge or Coral

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

    Cliona cretacica

    From the album: C&D Canal Micro Fossils

  16. I've had these for close to 20 years now and have shown some of them before but figured it was time to do a proper job of looking for info. (If I did before, I can't find the topic) I know nothing about these, either ID or location. They were part of a batch of fossils I received from an old rockhound couple in Nanaimo, which wasn't too carefully curated (a common problem with rockhounds/casual fossil collectors). Looking for info on the mystery items from that lot is what brought me to the Forum in the first place more than 10 years ago. I know Riley's Canyon, Utah has red corals, b
  17. Hi everyone this is Matt again. Take a look at this coral fossil that is made of crystals that I found in the creek today. here are some photos :
  18. gdsfossil

    Guadalupe Mountains National Park

    I found this a few years back near (but not in) Guadalupe Mts National Park. Is it a sponge, coral, algae, or something else? Piece is about 6 inches across. Thank you for your help.
  19. Hi everyone this is Matt again. Take a look at this cool coral I found in the creek today. Here is a photo of the coral:
  20. Hi everyone this is Matt again. Today in the creek, I found this very nice bryozoan fossil. Here is a photo:
  21. historianmichael

    Middle Ordovician Hindia?

    I recently found this tiny fossil at an exposure of the Middle Ordovician Benbolt Formation in SW Virginia. The fossil measures only a few mm in diameter. I actually found three of them, but two are more heavily encrusted by the surrounding matrix, and I do not yet have any tools to remove the rock. I wish I did because I think these will look really cool once they are fully exposed. Charles Butts listed Hindia parva ? among the fossils found in this formation. Since he listed it with a question mark and since there isn't a great deal of research material on the associated fossils of the Benbo
  22. Hi everyone this is Matt again. Ttoday in the creek I found this rock full of coral fossils. Here is 2 photos:
  23. Hello, I'd appreciate your help with this one. I found this one at a Lake Michigan beach in Illinois. Silurian from the Racine formation. I believe it's a sponge or demosponge. Thinking the white dots on the vertical growth are pores, and the admittedly terrible microscopic photo of a small area on top of the rock shows some of its openings. Some of these seem to be filled with minerals that make them look like bumps, many others aren't preserved well at all, just show as faded round dots. Am I way off on this? TIA, Pippa
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