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  1. Michael Marinelli

    Agatized Coral from Tampa Bay

    Found this coral head today where I’ve found other agatized coral in the Tampa Bay area in FL. To me it looks suspicious, it has a slightly blue color around its edges and has some botryoidal formations on the outside. It’s not super lightweight though, so I don’t think it’s hollow (or completely hollow). Does this look like it’s worth cutting? Is it likely to have any voids or botryoidal formations inside based on other agatized corals you guys have seen? recorded-478291984396.mp4
  2. I found this in northern New Mexico where there is a history of Pueblo culture. Found on/in a creek bank. I don't know anything about it other than they definitely seem to be bone.
  3. Soonerthanlater

    Maybe fossilized clam super hard

    Ive had this what looks to be a fossilized clam in my yard 30+years , my grandfather brought it home one day, he said he found it while they were dredging in some part of Tampa bay, it's really hard my wet saw cut through granite like butter but this not so much, basically I was wondering if anyone knew what it was and if it might have turned into something cool because I want to cut it in half and put of display, I'd appreciate any shared knowledge thanks.
  4. I’m new here, but have always been fascinated with rocks and fossils. My daughter is too, so I’m looking to do this as a hobby with her..but I digress. I was recently at an estate sale and picked up what I thought at first was a concretion and took it home. My close up vision is failing me, so when I put this under a big magnifying glass, I was amazed by all the details in this little 3”x3” piece. What can you tell me about all these little creatures? Any idea how old it might be? I want to share all the details with my daughter, so by all means…explain, please and thank you!
  5. Hello there community. I just bought a nautilus in the Yucatán peninsula. It looks real to me. Its a present for my boy who is a enthusiast of paleontology. Its a octopus pin now. hope anyone can help me with more info of this “fossil”. thnx
  6. I've recently found a very large gryphaea compared to others in my collecting (12 by 9 cm) and was curious as to what the age would be of the animal when it died. Is there any way to estimate this? I have both the shell and it's trapdoor. I've uploaded a foto of the side of the trapdoor.
  7. I have tried to have a search on the forum before posting this but there is soooo many posts on rays it is a long job! So... I have received some ray barbs and mouth plates from @Meganeura and I was just wondering if anyone could let me know the age and species of the common fossil find in the Peace river, Florida? I can post a few pictures if you want but they really are just the generic ones readily found! @Shellseekermaybe you can help?
  8. expatspain

    Second fossil find

    These belemnites were found at the base of a cliff at low tide about 1 metre apart. Two are encased in rock and one is au natural. I do not know how to tell species differences (if any) or the era they were from, although I assume Jurassic. Some research suggestions?
  9. kodpkd

    Got wood?

    Found in northeast Colorado next to WY border. This looks like petrified wood but I have been fooled before.
  10. Recently, a group of paleontologists were having a discussion regarding fossil shells after a woman produced one for identification. Discussion turned to the difference between a shell and a fossil shell (that being a shell which has permineralized). There was debate as to whether or not there are any shells that are older than any fossil shells in the general paleo record. One of the paleontologists knows a shell expert and she reported back that the oldest known shell is approximately 18,000 years old and that all shells older than that have permineralized. However, some found this difficult to believe, as shell material, being mostly calcium carbonate, should be able to survive for very long periods in non-acidic deposition environments. Can anyone confirm this? Thanks!
  11. Can you please tell me what shark species these teeth are from I found them on shark tooth island in North Carolina. Also, Can you tel me how old they are? Thanks!!
  12. Mattie

    Found in Galway, Ireland

    Hi, I found this fossil on my land in Co. Galway, Ireland today. Can you please confirm what sort of fossil it is. Roughly just over 6 inches by 6 inches. Thank you, Mattie
  13. Mattie

    Is this a fossil?

    Hi everyone, I'm new to the group. I'm wondering if the enclosed pictures are of a fossil. Found it on my land a while ago but have now only realised that it could be a fossil. Thank you,
  14. Glad to be back. I'm here to share a rock fossil my co-contributor and research partner discovered. It was unearthed in north San Antonio, TX. I believe this to be "the smoking gun" of proof sea turtles once inhabited the shoreline and ocean of San Antonio and that an event of great magnitude occurred covering these creatures and allowing petrification to occur. Bold statements and conclusions, but this appears to me to be a small sea turtle that is sticking out of whatever material covered it. And it did not decompose. Your thoughts?
  15. So how can i date the age of fossil rocks found on beaches? And can i locate what formation it came from?
  16. First off what are the lines on ammonites called? I was looking at images to find out what they are called and found septa on most but suture lines on some other ones, which is correct? Sorry ammonites isn't my strength. After that I was wondering if the lines had anything to do with age like on a big horn sheep's horns. I was doing some research on them and found that the 4 year old line is the most prominent and was wondering if ammonites had something similar. I thought they might because the last ring ends differently on different specimens, which is easy to tell when half has been cut and polished.
  17. MacHoffman22

    Teeth

    I know these are mammal teeth. I'm pretty convinced that at least the one on the left is a bison but would like to confirm. Would also like a rough estimate of age of possible.
  18. Bonehunter

    fossil museum(kids), horn coral?

    Here is my next one that, as best I can tell is mineralized/geode-type horn coral? Also found in the St. Louis area when I was a kid. Am I correct? thanks!! Bone
  19. Hi all! What a great forum!- so many experts!. This is my collection of "clam shells", and on a previous forum I saw discussion on similar shells between Wilkingia and Allorisma. Only took the two views initially to save MB. Thoughts, feedback and ideas as to species and age? All found on one gravel bar hiking KC, though not on the same dates. Thanks! Bone
  20. esandrews84

    Bison skull - Identification help

    I found this skull sticking out of the bank along the Tongue river in Ashland, Montana on the Cheyenne Indian Reservation. If anyone has any information I would love to find out more! Thanks.
  21. Tina Ruzzo

    Jaw bone

    We found this jaw bone about 2 ft in depth around a pond that was dug out. I looked up raccoon which seemed to be obvious but it doesn’t have any front teeth. Can you help out by identifying? Thank you. I’m pretty sure it’s not very old. I'm just having a hard time identifying it. Thank you.
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