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Found 29 results

  1. Unknown Ammonites

    Ralph @Nimravis generously gave me these Ammonites. I think he bought them at a garage sale. There was no data with them. I have zero experience with ammonites. I am hoping someone will be able to put a genus name on one or more of them or even venture a guess as to from where they may have come and what time period. Does that matrix / assemblage look familiar to anyone? One appears to be a heteromorph. I think I see Inoceramus in there. Maybe Cretaceous? Texas? They are all the same color (differences in color between the pieces in the photos is due to different lighting). Scale is in cm/mm.
  2. Ammonite in Hokkaido

    Name: Hyphantoceras venustum Location: Obira, Hokkaido, Japan Age: Santonian of Late Cretaceous Description: A heteromorph ammonite found in North Japan. This species is very rare. It has four rows of tubercles. A completely preserved species are unknown.
  3. Heteromorph ammonites- why the weird shapes? I am at a loss...
  4. I feel clammy

    Misaki_cretacjapasiaet_misakcommensmollusal-2014-Palaeontology.pdf COMMENSAL ANOMIID BIVALVES ON LATE CRETACEOUS HETEROMORPH AMMONITES FROM SOUTH-WEST JAPAN AKIHIRO MISAKI, HARUYOSHi MAEDA, TARO KUMAGAE and MASAHIRO ICHIDA Palaeontology, Vol. 57, Part 1, 2014, pp. 77–95 "Lagerstatt" is not among the keywords,but some ammonites are reasonably well preserved A long while back I said here that syn-vivo encrustation might be more common in the fossil record than usually assumed . @Heteromorph
  5. Creek was a little flooded today made it harder to navigate, started the day with 2 dead drill battery's that I had charged the night before so I decided to move father up to look at some different exposures, started by picking up some matrix for micro's from the bottom of the pecan gap, more on that later, and then some Del Rio clay for the same, (if someone has suggestions for how to wash this faster that would be great) spent the next 2 hours picking up heteromorph mariellas.
  6. Texas Heteromorph ID

    I went hunting in the rain yesterday. It wasn’t one of my most successful hunts, but I still managed to find some cool stuff. I found this in The Grayson Formation, Cretaceous in the Denton, TX area. I had never hunted that area of the Grayson before and it was different as every area of the Grayson seems to be. I found this section of a heteromorph. I don’t believe it is a Mariella. I am wondering if it could be a section of Turrilites. I believe it only has 2 rows of tubercles. Any thoughts? Side view Top down view Edge view
  7. Greetings, I recently bought an Heteromorph Ammonite fossil from Morocco (my first moroccan ammonite) and I decided to clean it with a little bit of water the same way I did with previous fossils. Big mistake... since I was shocked to see how the red ammonite turned brown and some parts disappeared (those put together with some sort of brown putty) when I put the ammonite under the water... After speaking with some fossil collectors I found out that many Heteromorph Ammonites from Morocco are indeed broken and put together, and they are sometimes "created" using the parts of different ammonites... You can see the ammonite before (the red one) and after (the brown one) and what I would like to know now is how to restore it please. What is the brown putty they used to put all the pieces together and how do they obtain that red colour? Is it totally necessary to use the same procedure? I've been creating and painting clay sculptures for years and I wonder now if using some clay and acrylic paintings would work... Thank you very much.
  8. Heteromorph, right side view

    From the album james herrmann

    In this right side view of the sculpture I would like to show the green marble base. I chose this mottled green marble as a continuation of the kelp forest theme. I envision this ammonite pulling its way along the waving fronts of a kelp forest as it forages for small crustaceans. Kelp forests are contrasts of warm, bright beams of light and deep shadow. The marble is mottled in various shades of green much like looking down onto the kelp forest's waving fronds.
  9. Heteromorph, front view

    From the album james herrmann

    In this view I again wanted to show the cantilevered structure of the sculpture and the subtle color differences in the patination of the shell vs the body of the ammonite.
  10. Heteromorphic Ammonite Left Front View

    From the album james herrmann

    In this front left view I wanted to highlight the waving of the kelp. The challenge was to strongly support the heteromorph while still making the sculpture feel like there was movement and a lightness to the work.
  11. Heteromorphic Ammonite Left Side View

    From the album james herrmann

    This left side view of the sculpture shows the attachment of the ammonite to the kelp, actually there is a lot of bronze in the mass of tentacles. From the base to the top of the sculpture is approximately 40 inches.
  12. Heteromorph Sculpture Left Rear View

    From the album james herrmann

    I like the complex repeating nature of the spines in this view of the sculpture. I am supporting the mass of the bronze ammonite with the bronze kelp leaves welded into a trellis-like pattern to carry the weight down to the base.
  13. My New Heteromorph Sculpture

    From the album james herrmann

    Heteromorph is my most recent sculpture with a paleontological theme. This is the rear view of the sculpture showing the shell spines.
  14. Ammonite

    Somewhere, I posted about the receipt of this ammonite from @RJB‘s cast off pile. I finished up the prep yesterday. Unfortunately, I don’t know these ammonites well enough to give it a good ID. I know there’s someone here who does though. I gave up on the back ammonite as its quality wasn’t worth my time.
  15. Hello All, Recently, I've acquired a sliced half of the Cretaceous heteromorph ammonite Scaphites. While rarely sliced, I managed to find one buried in a pile of similarly sliced Madagascar ammonites, and purchased it. Here are the photos: 1. A view of the whole ammonite. Here, we can see the phragmocone as well as the sediment-filled living chamber. 2. A closeup of the phragmocone, showing the beautiful septa. The minerals are very pure in this example, making some chambers appear as if they are filled with a tinted glass. 3. The point of no return: the outer whorl splits off from its counterpart, creating the unique shape which Scaphites and its relatives are known for.
  16. It's just an impression, but I find so few like this I had to keep it. Looked all over for the positive but could not find it. It seems so long and narrow for a Bostrychoceras, or is that just an aspect of the impression? 5 whorls visible.
  17. I am collecting heteromorph ammonite and one vendor is offering this ammonite to me. He does not have the id. For me its appearance (i.e. color and shininess) is quite different from what I have collected.
  18. The bad weather gave me time to spend some time classifying. so i spent some time on my albian stuff. Everything has been self collected (surface collected) over the years. Everything is also small, so i chose the screws cases to store them. Everything can be seen on a dedicated galery on TFF : here or in higher resolution on my flickr : here 8 cases... So here we go Ammonites : (3 cases) then crustaceans (2 cases) : Other inverts (2 cases) : And last one : vertebrate remains I hope you enjoy it. that's all for now.
  19. From the album Elcoincoin collection : 1 - Albian of Troyes

    Case with heteromorph ammonites from the albian clay of Troyes
  20. Madagascar heteromorph ammonite

    Hi guys, Thinking of buying this nice heteromorph ammonite from this Chinese seller. It originates from Madagascar and I'd like to know what genus or species (if possible) it is? And roughly how old as well. Thanks!
  21. Greetings! I mentioned in another topic, that I will post some of my heteromorph findings and prepwork. The locality is in Hungary, and is an abandoned quarry that produced cement for the local factory. It is rich in fossils, but it was a big underwater slope, and because of this the fossils only found in shallow beds, between redeposited layers of "nothing" and always in condensed form, and the bigger pieces fossilized mainly in fragments. Another problem is, that the compressed marls contains only stone molds, sometimes with slick&slides on them, and the matrix and fossil is hard to distinguish There are some pieces that have the imprints of spines. Here is one that is a big question for me, because the spine is visible, (at least at 1 section that broke out with some luck) but it is only a thin imprint in the stone, and I really like to have some opinions, what to do with it... I began prepping, but if i only touch the stone with the vibrotool, I see nothing what I do onward, because the fine dust completely obscure the spine, so I could work as I imagine they should be, and I fear that I will destroy it (and the further ones) completely, and I am uncertain to try to fake them from the matrix (But it is already nearly the same) so this is one option. Another problem is that I need to remove a lot of matrix, and I have bitter expectations what will happen with the underlying spines... So there is a second option to do nothing with it, but I like more to have a good prepared spiny Crioceratites in my collection, so I will try anyway The first spine from the living chamber is currently "faked" because I do not found the spine imprint yet. The second spine is original (as the stone broke off of it) (the other fossil is an Orbitolina, but I am not shure) The sandy marls are soft and the stone molds that have a thin calcite shells are sometimes found in calcite concretions, the calcite coating is very thin and always damaged. So preparing the material is a challenge. Sometimes the spines are preserved, but always broke off. You will see on the pictures below, that the pieces are extremly fragile. Maybe there is a way to preserve, the spines or put them back while preparing? Here is a remains of a spiny one: Here is some finished or nearly finished pieces: From the softer sandy marls: Freshly found Crioceratites (nolani?): Gluing together the pieces: Restoring the missing part with magic sculpt, and coloring it with powdered stone to imitate the stone molds thin calcite coating. (the color was really hard to match, and I am not satisfied with it, but I done my best with it) The complete piece, prepared: Here is some pieces from the condensed marls: Freshly found Crioceratites (duvali?): Gluing together the pieces: Restoring the missing parts with magic sculpt, and stone chips from the matrix, and coloring it with powdered matrix There are acrylic lacquer applied, so the fossil is better distinguished from the matrix The complete prepwork: Here is another heteromorph, Anahamulina (acuaria?): After prepping out of stone: (need further work) With kind regards
  22. Ammonite sculpture question

    I am sculpting an ammonite which will be hunting through kelp fronds. The ammonite i want to use for this sculpture is crioceratites or something closely related. I like the spines and overall shape. My question is how many spines around each band of the shell? Five or six? Thanks for any help you might provide.
  23. heteromorph: Glyptoxoceras

    The circular variety - in form of overlapping circular loops (see also my other entry for this taxon)
  24. heteromorph: Glyptoxoceras

    The 9-shaped variety. The other variety is overlapping circular loops (see my other entry for this taxon). From the 'sponge site'.
  25. Vancouver Island ?Pseudoxybeloceras sp.

    Length is of the visible portion of the ammonite itself, 'a' and 'b' parts together. Exact day of collection unknown.