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  1. Vampire squid ancestor died in 'eternal embrace' with its dinner The Jurassic predator and prey suffocated together underwater https://www.livescience.com/jurassic-predator-prey-suffocated.html https://unfoldtimes.com/vampire-squid-ancestor-died-in-eternal-embrace-with-its-dinner/ The open access paper is: Klug, C., Schweigert, G., Fuchs, D. and De Baets, K., 2021. Distraction sinking and fossilized coleoid predatory behaviour from the German Early Jurassic. Swiss Journal of Palaeontology, 140(1), pp.1-12. https://sjpp.springeropen.co
  2. belemniten

    Ichthyosaur vertrebra

    From the album: Holzmaden

    A 3.7 cm long Ichthyosaur vertebra from the Posidonia shale from the quarry Kromer near Holzmaden. Here two more pictures: And a bad picture of the unprepped vertebra: The stone was extremely hard so the prep work was very difficult.
  3. doushantuo

    diplobelid taphonomy and ethology

    Predatory behaviour and taphonomy of a Jurassic belemnoid coleoid (Diplobelida, Cephalopoda) Dominique Jenny, Dirk Fuchs, Alexander I. Arkhipkin, Rolf B. Hauff, Barbara Fritschi & Christian Klug 1 pdf.pdf Nature,Scientific reports,9-2019
  4. The quarry Kromer near Holzmaden did open two weeks ago (it was closed during winter). So last Saturday I was there the first time this year and I have to say that I am kinda satisfied with my finds! I found several marine reptile teeth, some mainly incomplete bones and a fish with much potential. In this topic I want to show how I prep/prepped a plate on which originally two Ichthyosaur verts were visible. The verts are all about 4 cm big. Here is a picture of the unprepped plate: (I have the other parts...) The prep work is very difficult because the stone is extre
  5. belemniten

    Steneosaurus tooth

    From the album: Holzmaden

    A 2 cm long Steneosaurus tooth (crocodile) from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). Sadly its a bit damaged. Another picture:
  6. belemniten

     Saurorhynchus jaw

    From the album: Holzmaden

    A 6 cm long Saurorhynchus jaw from the quarry Kromer in Holzmaden (Lower Jurassic, Posidonia Shale).
  7. belemniten

    Acrocoelites

    From the album: Holzmaden

    This is a beautiful 15 cm long Acrocoelites (belemnite) from the lower Jurassic from the quarry Kromer near Holzmaden. Its special because of its great preservation and because it has an enlarged furrow, which was probably caused by an infection or a bite. One of my best belemnites until now! Two more pictures: The enlarged furrow:
  8. Here are two of my best belemnites I found this year in the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale) . I found tons of them this year but mostly they aren't that good preserved. The first one is about 15 cm long and is a relatively new find. I finished the prep yesterday. It's really good preserved and not too short. It should be Acrocoelites because I think I can see three apical furrows. Noticeable is that one of the apical furrows is really big. Maybe @TqB can tell a little bit more about this belmnite? A
  9. Here is a piece with four paddle bones and another bone from a rather big Ichthyosaur. I found it about 2 weeks ago in the quarry Kromer near Holzmaden (Lower Jurassic) and finished the prep today. Overall I spent about 6 hours to prep this one. Especially because of the belemnites. The paddle bones are about 5 cm long. Sadly I forgot to take a picture of the unprepped stone but you could only see the cross sections of the bones on both. But here are some pictures of the progress: Finished: And some detailed pictures:
  10. belemniten

    pterosaur bone

    From the album: Holzmaden

    This is a 11 cm long pterosaur bone (maybe a flight phalanx) from the lower Jurassic from the quarry Kromer near Holzmaden. It was a very luck find as I found it on a stone, which I took with me because of another fossil. So I am very happy with this find although the preservation is not the best.... Two more pictures:
  11. belemniten

    pterosaur bones (perhaps Dorygnathus)

    From the album: Holzmaden

    This is probably one of my best find so far from the quarry Kromer near Holzmaden. Its a plate with some pterosaur bones, which is very rare in Holzmaden as these are marine desposits. The bigger bone might be a Humerus. Before I was able to find this piece I only found a few isolated pterosaur bones. Hopefully I can find a complete one one day The prep of this specimen took about 5 hours. Before the prep it was visible that these are pterosaur bones so I was very surprised ... Some more pictures:
  12. belemniten

    Probably Plesiosaur bones

    From the album: Holzmaden

    This seems to be a kinda rare find because maybe these are plesiosaur bones. Plesiosaur is the rarest marine reptile in the area of Holzmaden so I am pretty happy with this find On the plate are two ribs, a phalange and an interclavicle. But I am far away from being with the ID although I already showed it too some local experts. Its from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale). Unprepped: Some more pictures of the prepped specimen:
  13. belemniten

    Crocodile cervical rib

    From the album: Holzmaden

    This is a 5.2 cm long cervical rib of a crocodile. Its from the Posidonia Shale (Lower Jurassic) from the quarry Kromer near Holzmaden. Another picture:
  14. I wasnt very active recently so sorry for that. But the last weeks I was several times hunting for fossils in the quarry Kromer in Holzmaden (Germany) and in this thread I want to show you some things I found there. As some of you know may know I am mainly interested in marine reptile fossils so most of the finds are marine reptile bones and teeth ... So firstly some teeth. I actually found a lot of them but these are the best ones I found this year: A 2 cm long Steneosaurus tooth (crocodile): Another Steneosaur tooth with a length of 1,8 cm:
  15. belemniten

    Unidentified bone

    From the album: Holzmaden

    This is an isolated, unidentified bone from the posidonia shale from the quarry Kromer near Holzmaden. Its very difficult to determine these isolated bones but it might be a part of a skull bone of a marine reptile ... Another picture:
  16. Hunter, A.W., Mitchell, E.G., Casenove, D. and Mayers, C., 2019. Reconstructing the ecology of a Jurassic pseudoplanktonic megaraft colony. bioRxiv, p.566844. https://www.biorxiv.org/content/10.1101/566844v1.abstract https://www.biorxiv.org/content/biorxiv/early/2019/03/04/566844.full.pdf Hess, H. 2011, Treatise Online, no. 16, Part T, Revised, Volume 1, Chapter 19: Paleoecology of pelagic crinoids https://www.researchgate.net/publication/272640982_Treatise_Online_no_16_Part_T_Revised_Volume_1_Chapter_19_Paleoecology_of_pelagic_crinoids
  17. belemniten

    Steneosaur vertebra

    From the album: Holzmaden

    A rare crocodile vertebra (Steneosaurus) from the lower Jurassic from the quarry Kromer near Holzmaden. Crocodile material is much in Holzmaden rarer than Ichthyosaur bones ... Some more pictures:
  18. I recently bought this piece from online and am uncertain of its authenticity. (But not very worried - it set me back less than $10!) It looks very much like the Dactylioceras ammonites coming out of the Posidonia Shale that I see online sometimes; however, up close, the shimmer appeared suspiciously similar to glitter nail polish. I tried a little acetone on one of the small back ammonites (third photo) and the gold dusting came off easily. There doesn't seem to be any depth to the positive fossils; where the plate is chipped, there just seems to be shale underneath. There are also tons of ti
  19. belemniten

    Steneosaurus tooth

    From the album: Holzmaden

    A 2 cm long Steneosaurus tooth (crocodile) from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). Some more pictures:
  20. belemniten

    Ichthyosaur tooth

    From the album: Holzmaden

    A 1.6 cm long Ichthyosaur (perhaps Temnodontosaurus) tooth from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). The prep work was kinda hard because the tooth broke into two pieces. Some more pictures:
  21. belemniten

    Steneosaurus tooth

    From the album: Holzmaden

    A 1.2 cm long Steneosaurus (crocodile) tooth from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). Two more pictures:
  22. belemniten

    Crocodile vertebrae

    From the album: Holzmaden

    These are two crocodile vertebrae from the lower Jurassic (Posidonia Shale) from the quarry Kromer near Holzmaden. The bigger one is about 8 cm long. Here is a picture of the unprepped fossil: The prep work took about 10 hours. I am very pleased with this find because in general crocodile bones are much rarer than Ichthyosaur bones in Holzmaden. Some more pictures:
  23. Last Saturday I was in the quarry Kromer (Posidonia Shale, Lower Jurassic) for the first time of the year. Maybe some of you already noticed this topic: http://www.thefossilforum.com/index.php?/topic/93302-prepping-a-plate-with-some-ichthyosaur-vertebrae/ Beside of this plate I also found some other cool things but firstly here is a picture of the quarry: You are allowed to search in the heaps on the left behind the white car. The material isn't that bad at the moment. I was there about 6 hours and I found about 6 teeth. I already prepped three Stenosau
  24. belemniten

    Ichthyosaur vertebra

    From the album: Holzmaden

    A 2.5 cm long Ichthyosaur vertebra from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale). Here is a picture of the unprepped cross section: It took about 3 hours to prep this one. Some more pictures:
  25. belemniten

    Steneosaurus tooth

    From the album: Holzmaden

    A small and a bit damaged 1.2 cm long Steneosaurus (crocodile) tooth from the Posidonia Shale from the quarry Kromer near Holzmaden.
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