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

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  1. Bringing Fossils to Life

    Mahantango Ammonoids- the complete guide

    Here is the complete guide to the Mahantango ammonoids! Koenenites is only included because of two specimens (found by my friend and I) from Swatara Gap, which includes some Mahantango strata according to HynerpetonHunter. Tornoceras is the most common, Koenenites the rarest. Enjoy!
  2. meganblairbare

    New at this. Need help with ID.

    Found in Brevard County FL. Very new to this. Don't exactly understand how to do this proper. Any insight appreciated. Thanks.
  3. I've been working on a Petoskey Stone presentation for my rock and mineral club and have been collecting various colonial rugose corals that have been on sale on online and Etsy. I've been doing this because "Petoskey Stone" has become a popular name to use to sell fossilized coral and I want to be able to show our club how to differentiate Hexagonaria from other types of coral. I've gone through this forum and gleaned some data from @TqB and @FossilDAWG while they were helping out on IDs and was wondering if anyone could help me fill out this cheat sheet with more information (and correc
  4. Joseph Kapler

    Tooth Identification

    Here is a small tooth collected from the Hell Creek formation, Garfield Montana, likely a juvenile. I think from its properties that it is a Nanotryannus. I would appreciate your thoughts.
  5. Joseph Kapler

    Theropod Tooth Identification

    Here are two addition teeth from the Hell Creek Formation of Custer County, Montana. I believe they are from a juvenile T-rex. The first tooth is either a maxillary or dentary tooth. The second is a either a pre-maxillary or pre-dentary tooth. I would appreciate any thoughts on the taxonomy and jaw position. By the way I use these teeth for teaching Fossil Friday classes to kids. I apologize for the photos; for some reason I was having camera problems.
  6. andoran

    Northern MI Coral Fossil

    I found this in with a bunch of Petoskey Stones from the Alpena area, but I'm not quite sure it is one too. It seems like the calyxes are further apart than they are in Hexagonaria. Does anyone have an idea what this is? I'll go ahead and tag @TqB myself. Thank you for the help.
  7. Unsure of what I have found. Hoping for some help.
  8. Hi All and happy new year, I'm very much a noob with a budding interest so please be gentle lol. I found these on a walk a little while ago very close to where I live in Lower Saxony, Germany. They were half sticking out of the side of a hill that has had a path cut into it. I wonder if you can tell me if they are fossils and if so what they might be. Best Wishes Matt
  9. Joseph Kapler

    Theropod Tooth Identification

    Here are two teeth from the Hell Creek formation of Carter County, Montana. Both that been Identified by others as belonging to Nanotyrannus. The first tooth is similar to the one I posted yesterday which comes from a different location. The other is a front tooth. I would appreciate any thought on taxonomy and jaw location, including yesterday's post.
  10. Joseph Kapler

    Theropod Tooth Identification

    Any thoughts on taxonomy of this tooth? It was collected from a horizon in the Hell Creek Formation, Powder River County, Montana that was said to contain Nanotyrannus remains.
  11. andoran

    Pyritized Hexagonaria Coral

    I purchased this from someone who said it was a Hexagonaria coral found at the Rensselaer Quarry in Indiana and it is covered with a coating of calcite and pyrite crystals. Can anyone verify that this seems to be a correct identification?
  12. andoran

    Ontario Coral Fossil

    I purchased this from a woman in Ontario, Canada with no other information as to what it may be. Does anyone have any ideas?
  13. I purchased this from someone in India who claims it is a Hexagonaria from the US. I have severe doubts that this is true. It looks like Moroccan coral to me. I base this on Petoskey Stones are rarely agatized, the corallites seem to be larger and not as hexagonal as they should be for Hexagonaria, and Moroccan coral seems to be yellow quite often, while I have only seen a couple yellow Petoskey Stones and they both have a lot of inclusions. Does anyone have any idea whether this is Hexagonaria or not?
  14. Hi, I am a real novice here. I was given several sharks teeth collected on northeast Florida beaches. I am trying to identify them to create a small 'show and tell' for beach goers to be able to ID the teeth they find on the beach. I am now totally confused as some say they are Mako as there are no nibs but there are several examples of Sand Tiger Sharks that have no nibs. I found this forum and am hoping you can help. Also I have no idea what the piece in the middle is. I am assuming it is a broken piece from maybe Tiger Shark? Thanks from a Novice trying my b
  15. I purchased this from someone in the UK who said it was Hexagonaria from Alnif, Morocco. Does anyone have any idea if this is correct?
  16. andoran

    Moroccan Cabochon Agatized Coral

    I purchased this from a shop in India that claimed it was a Petoskey Stone from Morocco. Obviously, this isn't true and I feel like it is probably not a Hexagonaria. Does anyone have any idea what it is? (Sorry about my phone leaving shadows and the images up.)
  17. I purchased this from someone in the UK that said it was Hexagonaria from Ireland. Does anyone have any idea if this is true?
  18. andoran

    Coral from Alaska

    I purchased this from a store in Alaska. I have no information about it at all. It looks similar to what I'm seeing online about Stingray Coral, but I can't find out anything about what that actually is. Does anyone have any idea what this might be?
  19. andoran

    Hexagonaria quadrigemina?

    I just posted on two other corals. I have several that I need help with identifying. Please forgive me for the spam. I thought it would be easier to post one or two rocks per topic rather than put them all together. I purchased this one from online from a pawn shop in Florida. They claimed it was a Hexagonaria quadrigemina. Does anyone have any idea whether this is true?
  20. andoran

    Purple Petoskey Stone

    I purchased this from someone in a Detroit suburb who said she collected this herself (no further information on location). It is a mess and I cannot tell if it is truly a Hexagonaria or not. I've had several collectors from Michigan take a look at photos and we cannot come to a consensus. Does anyone have an idea on what this might be? (Sorry for no cm ruler. I've misplaced the rock somewhere.)
  21. I purchased this from a shop in Iowa that said it was a glacial erratic. Does anyone have any idea on what type of coral it is?
  22. I purchased this from a man who said it was found on a mountaintop in Tennessee. I have no other information about it at all. Does anyone have any idea what it might be?
  23. andoran

    Rugose Coral from Kentucky

    I purchased this from someone in Kentucky. It was labeled Rugose Coral fossil with no other information. Does anyone know what type of Rugose it is?
  24. Joseph Kapler

    Therapod Tooth Identification

    Here is a small tooth, probably a juvenile therapod, from the Hell Creek Formation, Garfield County, Montana. The collected horizon reportedly produces material belonging to 'Nanotyrannus'. Any thoughts on what taxonomy this tooth may represent? It show feeding wear and nice distal serrations, but no mesial.
  25. 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
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