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  1. Mochaccino

    Two Nautiloid Steinkerns?

    Hello, Could I get some help identifying these two nautiloid steinkerns? Unfortunately no precise age/locality info on them but I think they might be from the Pennsylvanian or Permian of Kansas or Texas. They are both around 8-9cm wide. 1. 2. Referring to this: http://inyo2.coffeecup.com/kansasfossils/kansasfossils.html I think #1. might be Metacoceras and #2. might be Liroceras. @Missourian I believe you are referenced in that post and you seem to be experienced in this fauna? Thanks
  2. Alex BC

    Second opinion for steinkern?

    Hello there! Found this walking the beaches in North Myrtle beach. I think it may be a steinkern but wanted to double check before I tossed it back to the sands. Thanks in advance!
  3. Burke_Family

    Gastropod? Mollusk? Or?

    Our 3rd grader found this on a beach in Coos County, OR. Her first impression is that this is a snail fossil. We’re wondering 1) what is this and 2) if this is an internal mold? There’s also an impression on one side of the matrix that looks like a separate cast. But we’re really not sure… we are having a difficult time visualizing what’s going on here. When you look closely at the spiral it does appear to have shell in there. We’ve googled a ton and compared pictures of different spiral fossils, but still aren’t sure. Thanks for any info!
  4. Kat7

    Newbie needs fossil ID

    Please forgive me if this is a duplicate posting. I tried before but it seems it did not post. Wondering if I can get some input on a fossil I found on a beach on Long Island Sound. Is it a Steinkern? If so, any guess which bivalve? Is it a seed? Or a bone? Any thoughts on its age? Thank you for your feedback in advance.
  5. Thomas1982

    Gastropod Steinkern

    From the album: Mahantango Formation

    Gastropod Steinkern Schuylkill county, Pennsylvania
  6. MrBones

    UAE Steinkerns

    Do you think it would be possible to id these steinkerns? I would like to get a bit more specific than "gastropods". They come from Al Ain (an Emirate in the United Arab Emirates) close to Jebel Hafeet and are Eocene to Miocene in age. These two shells have little bumps as well as lines running along the outside. This shell has two rows of bumps running along the outside. This steinkern is still in its matrix, you can see the shell had short spines on the exterior. This one looks like a spondylus shell
  7. Thomas1982

    20220321_103707

    From the album: Cretaceous of Delaware and New Jersey

    Gastropod Chesapeake and Delaware Canal
  8. NWARockhound

    Sandstone Nautilus Steinkern?

    I found this intriguing rock in Northwest Arkansas, in the Bloyd Formation I believe (carboniferous). It really looks like a steinkern to me, but I've only found limestone steinkerns before, hence my doubts. It's approx. 3" x 2"
  9. RescueMJ

    Shell Cast Fossil

    Clast bivalve....that is all I know about this specimen I collected. It is preserved very well. I found it in a spoil pile after they dug out a lake. It is my favorite shell fossil. If you could ID it for me, that would be super. Found in North Port, FL. 10 miles East of Venice, FL. The clast is 4inches x 4 inches x 4 inches. Other fossil material in that area ranges from Meg teeth, whale vertebrae, Equus. ID appreciated.
  10. FossilNerd

    Lonely Bivalve Steinkern

    I know this is a long shot, but does anyone have any idea what this bivalve steinkern may be? It was found in the Upper Ordovician (drakes formation) of Kentucky. Brachiopods are overly abundant in many of the areas that I hunt, but bivalves seem to be scarce, or I am too used to seeing brachs to pick out the bivalves. Anyway, this is the one and only bivalve that I have found, besides a few possible fragments. I know it can be near impossible to identify any steinkern, but does the shape, size, or provenance give anyone an idea as to what this may be? It just looks so lonely o
  11. clay

    steinkern pearls

    Does anyone know about steinkerns having pearl-like things inside? I can see how this might be possible but . . . . I don't want to hammer into any of mine until I'm sure I might fine something.
  12. Misha

    Strange Steinkern

    This is a steinkern of a fossil clam that I had purchased, the shell itself fell apart almost immediately and this was left. I just want to confirm that the things on the surface of it are some kinds of trace burrows from worms, I am not really sure but that is what they look like to me. Thank you all.
  13. PSchleis

    What made this impression?

    Thanks to you guys, I think I recognize an endocast/steinkern when I see one. But if I'm right and this is one, I can't for the life of me figure out what would have made this kind of impression. Does this form look familiar to anyone? At first I thought it looked a lot like the rim of a queen helmet shell, but there isn't an opening there to fill with anything that would form a fossil. Found on Myrtle Beach. Thanks! --Paula
  14. DAW85

    IMG_2944.JPG

    From the album: Daw85

    Turtle head
  15. Rowboater

    rapp creek hunting

    Howling wind and deep ice cold water, but figured the creek bed would protect me from the wind (it did) and cold (not so much). Less hunters out. Don't usually post casts/steinkerns but this gastropod(?) has two small fossilized worm like things on it (probably need to get a better photo than the scan). All the rain has washed shells everywhere (lots of 5" to 7" scallops/ pectans everywhere; didn't see any whole ecphora, the only shells I usually pick up. Frilly oysters were everywhere as well; top half is neat). Most of the teeth I found was small or broken or both; three cow shark, one d
  16. KimboSlice

    Bryozoan Archimedes? Tooth?

    I’ve got 4 fossils, or steinkerns, I’m needing help identifying, all on the same rock. Found in a creek bed in Boone County, MO. I believe it to be from the Mississippian Era. I believe those labeled one and two are Bryozoan Archimedes. Number one (the biggest of the two) measures at a little over 1/4th of an inch. Number two measures at almost exactly (slightly over) 1/4th of an inch. Number three I’m thinking is part of a stem of a Crinoid? Can anyone confirm or deny this for me? The fourth is, what I believe to be, a steinkern of a possible tooth? Like, a tooth laid there at one point, and
  17. daves64

    Maybe clam steinkern

    Is this possibly a small clam steinkern or just an ordinary concretion? Or maybe a tiny, ancient UFO? 4.5 cm wide x 3.5 cm deep x 2 cm thick. Some of the openings go in a ways, pic 2, left side goes in about a 1/4 inch, same with left opening in pic 3. Pic 2 just looks like some 1950's movie UFO.
  18. These are all in the same stone. Wondering if it's 3 different preservation types of the same species. Found in Sw fl, in the sand. Trying to learn to recognize familiar players in their various forms and stages of erosion. Couldn't get the tape measure next to two of them, but they're both 2.5 inches long on the nose. The one that looks like a unicorn horn(w/ tape measure) was what caught my eye, rimmed with grass it really stood out! Its shimmery and beautiful. Is it ok to chip it out? Far from its margins, of course. 3rd pic following...
  19. Uncle Siphuncle

    Hardouinia Echinoid Steinkerns

    I had a couple Hardouinia beginning to exfoliate. Perhaps sacrilege, but I peeled ‘em. While ammonite steinkerns are quite common, it is cool to get an “inside perspective” on echinoids.
  20. Hi all, I was wondering: would the steinkern of for example a Turritella be considered a fossil or an ichnofossil? Because in fact, the shell itself didn’t become a fossil, and what we are looking at is just sediment that filled in the shell and then solidified. But then again I’ve never heard of a steinkern being referred as an ichnofossil... So what do you guys think: really a fossil, or just a trace fossil? I am curious to see everyone’s opinion Best regards, Max
  21. Rowboater

    Rappahannock Creek find

    I have no idea what these things are but I keep picking them up. I think someone thought they might be steinkerns (casts) or maybe had other suggestions (getting old, senile, maybe I forgot). Almost flat on one side, kidney-shaped where there are characteristic radial bands or striations; rounded on the other side (second picture). Almost always have the black glossy enamel of fossils. The more rounded side on this specimen is chipped and you can see the same radial banding within, but with no shiny black. Generally all are about an inch or so long. Thanks for your help?
  22. Hi all, I acquired this piece, did not find on site. It seems to be basalt but the outer matrix is packed with sand and shell fragments. The brachiopods (I am assuming from the research I have done) are rather large, and appear in a cluster. Some of the fragments I have observed appear to be from the devonian era. I am assuming this is a steinkern vs true fossil. But the matrix is so fragile to clean it is destroying it. I am more of a rock hound than true fossil student. I have learned from some of my earlier posts last year that if the structure has been replaced by silica t
  23. Max-fossils

    Bivalve steinkern from France

    Hi all, Anyone know what species/genus this bivalve steinkern is? It's from Rivière-sur-Tarn, a location in France that yields fossils from the Toarcian stage of the early Jurassic (approx 180 mya). Best regards, Max
  24. Max-fossils

    Another bivalve steinkern from France

    Hi all, Anyone know what species/genus this gastropod is? Never seen anything like this one before... It's from Rivière-sur-Tarn, a location in France that yields fossils from the Toarcian stage of the early Jurassic (approx 180 mya). Best regards, Max
  25. Hi all, I just acquired this interesting specimen that was identified by the seller as Helicodromites mobilis. However, when trying to verify this, the images and description I've been able to find really don't seem to match. The whorls on this are flat and attached to the core. To me, it looks more like a cast of a shark egg case. Are any of you familiar with H. mobilis? Thoughts? Thanks for taking a look!
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