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Found 7 results

  1. Hy guys, So I got this nautiloid in a wholesale and when I got home I realized this kind of small "hole" in the inner part of the shell. My doubt is if this is reminiscent of the siphuncle or it was made by someone. What do you think?
  2. Platteville Cephalopod

    So this is a fossil from Beloit Wisconsin found in the Platteville formation. I am pretty sure it is a cephalopod but I have no idea what genus or species. The siphuncle is hollow except for two septa that run right through it. 3" post-it note for scale.
  3. My exploration/presentation of possible (I believe probable) siphuncle preservation in Michelinoceras that I found at smokes creek in Buffalo, New York. Enjoy! In the Hamilton group found in western New York (Wanakah shale, Windom Shale) you can find 2 straight shell nautilods known as Spyroceras and Michelinoceras. Both can be found throughout the Hamilton group but there is one particular bed at the base of the Wanakah shale on top of the Ledyard shale that has a high representation of Michelinoceras. The “Mt Vernon Bed” (seen in photo) is a very hard and concretionary calcareous shale with abundant cephalopods, Gastropods and some extra fauna mixed in. You can find this bed at smokes creek and rush creek behind Penn-Dixie in Buffalo, New York The scientist in me likes to collect type (exemplary) specimens...something represantive of the species I can refer to. Once I have a great specimen I’ll only collect other “type” (exemplary) quality specimens or rare “oddities”. I recently found some rare oddities stored away that I collected of Michelinoceras a few years ago. I decided to put some study time into them cause I never really looked at them hard. After some research and observation I think I know what I’m seeing and I’m going to share my thoughts but I would love to hear from some cephalopod experts! Pic 1 : stratigraphic setting Pic 2: type (exemplary) specimen typical of Mt Vernon bed. Pic 3: 2 large supplementary type (exemplary) specimens I have. The complete specimen actually shows very faint sipluncle evidence at the bottom of the picture. Pic 4: Bombshell specimen that allowed me to link and ID the specimen in picture 5 as a Michelinoceras. Pic 5: Partial Michelinoceras showing this same oddity seen in picture 3 and 4. I am going to follow up with more up close pictures and a few words/ evidence on what I think it is.
  4. Locally, I find quite a few large cephalopods. Here is an example: Unfortunately this specimen was deteriorated. and I collected only it's exposed siphuncle. After gluing it back together, I noticed definite narrowings that I do not understand. Other siphuncles I have found have raised areas on them, not narrowings. Any ideas on this anatomical aspect??? Here is another cephalopod I found that day. Love the crystals inside.
  5. I can't seem to find an ID for this find. I believe this may be a siphuncle. What do you guys think? The "V" shaped sutures are really throwing me off. Has anyone seen a straight shelled cephalopod with this "V" pattern? Kinda neat how you can see how this was buried, preserving one side as it weathered the other. Then along came a dozen crinoids or so a used it as a nice base.
  6. Something maybe new to folks

    Here's a new fossil shape I just learned that maybe others will find interesting or useful. This muffin is a broken segment of the "annulosiphonate deposits' from a Carboniferous nautiloid. I can certainly say this would've completely stumped me had I found one of these before learning this!
  7. Holy Siphuncle!

    At the moment I have the pleasure of accompanying TFF member Jeffrey P and 2 friends on their fossil hunting forage over here in Germany. I've given them a few tips and also managed to free myself up for the day yesterday and took them to the Kimmeridgian site in the upper Danube valley for a bit of digging and delving. I think they were quite content with the experience since they treated me to a nice meal at their hotel afterwards Also Jeff's friend Ralph was nice enough to pass on a well-preserved Taramelliceras sp. ammonite to me as a token of thanks which he had found. He noticed how enthused I was by it, so he graciously offered it to me. At first I thought it was a particular species which I've never found in the divisum zone before, but I realized after closer scrutiny at home that it's rather a Taramelliceras compsum, which occurs there occasionally. Nevertheless, I'm happy to be in posession of it, since it's the largest and best preserved one I have to date and it also distinctly shows the well preserves calcified siphuncle.
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