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Found 49 results

  1. Ichthyosaur tooth

    From the album Holzmaden

    A 1.4 cm long Ichthyosaur tooth from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). Some more pictures:
  2. Steneosaur tooth

    From the album Holzmaden

    A 1.3 cm long, a bit damaged Steneosaurus tooth (crocodile) from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). Another picture:
  3. 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:
  4. jurassic marine reptile tooth

    Hello, I found this tooth of a marine reptile 2 years ago in the Bathonian ( jurassic ) deposits of Thin le moutier in France. Is there any one who could give me an idea of what kind of reptile it might be? the tooth is 3mm long Thx, Natalie
  5. Steneosaurus tooth

    From the album Holzmaden

    A 1.2 cm long Steneosaurus tooth (crocodile) from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). That black fossil around the tooth is petrified wood. Some more pictures:
  6. 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:
  7. 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:
  8. 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:
  9. Last Sunday I was for about 6 hours in the quarry Kromer (Lower Jurassic) near Holzmaden (Germany) and I was kinda successful there. Besides several teeth I found a beautiful piece with croc bones. At first only a cross section of a bone was visible but during the preparation some more bones got visible. I am not finished yet but I prepped about 4 hours until now. This is a picture of the unprepped stone: And after 1.5 hours: I will post a picture of the current state today... I am very excited about this find because crocodile material is much rarer than Ichthyosaur material in Holzmaden. And I never found such a croc bone until now. I am really not sure what type of bone it is. Maybe from the pelvis or from the shoulder?
  10. 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:
  11. 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.
  12. 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 Stenosaurus (crocodile) teeth: 1 cm long: 1.8 cm long: (the best one) And 1.2 cm long: (damaged) I also found this fish: The cross section is about 5 cm long and it will need very much prep work... I don't think that I will do this one in the near future although a friend and expert said that this is a kinda nice find! My favourite finds were the bones. I found several incomplete ones which I didn't take home but also the plate with the vertebrae and another plate with some bones on it. Here is a picture of one of the visible bones: I think that should be an Ichthyosaur Humerus but I am not entire sure. I will post some more pictures of it tomorrow and after the prep. There are also a couple of ribs on the plate so it could be interesting! And for all the invertebrate fans. Here is a sweet little ammonite: Thanks for watching!!
  13. 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 extremely hard. So I have to use my air pen to remove the stone directly above the verts and then I remove the remaining thin layer with my sandblaster with about 6 bar which is probably too much for the bones but otherwise I wouldnt do any progress ... This is the current situation: Until now I prepped about 4 hours and now you see that there are even more vertebrae on the plate At least 3 and a half.... And here is the one which wasnt visible at first. I damaged it a bit but I think its not too bad. Hopefully the stone is a bit softer around this one: I think I have to work many hours on it so wish me luck @LiamL
  14. Pliosaur discovery The landowner has asked that the location is kept secret to avoid the problem of having unauthorised collectors trespassing on their land, and the risk that unscrupulous individuals may loot the site and destroy valuable scientific information in doing so. 28/10/2017 First discoveries The SDGS organised a field trip to a quarry known for its exposures of the Lower Chalk and Kimmeridge Clay. It was a very successful day, and many interesting finds were made by members of the society, including ichthyosaur and plesiosaur bones, and a possible dinosaur bone. The most significant find of the day however was a very muddy lump of limestone which on closer examination showed itself to be the tip of the snout of a pliosaur. The bone was found at the bottom of a clay face a meter and a half high. Within the face is yellowish, pyritic bed which look similar to some of the clay adhering to the snout. Other bones, including a vertebral centrum and the atlas-axis were found either in material eroded from the face or in situ.The prospect looks good for more bones, possibly of a scattered skeleton of the animal. 01/01/2018 Preparation of premaxilla The bones found on the first visit were took to Mark Evans at New Walk Museum, Leicester for his views on their identity and significance. We had initially identified the tip of the snout as a maxilliary symphysis, but Mark determined that it is the premaxilla. He also identified the atlas-axis, The outcome of this was that the find is potentially of considerable significance. Large pliosaurs are rare. 26/05/2018 Second site visit A second field trip was arranged with the intention to find out if any more of the animal is preserved. The team started to dig into the face to expose the bed from which the bones originated. After a rather dicouraging first hour or so, vertebra started to appear. It became clear that this is not just a few scattered bones, but possibly a substantially complete carcase. 16/06/2018 Third visit After the success of the last visit, it became clear that a more systematic approach to the excavation is needed. Sketches of the layout of the bones within a 50x50cm grid were made, and bones were numbered as they were lifted. The preservation of the bone is patchy. Most of the vertebral centra are robust and well-preserved, but the ribs are in general very friable especially when wet. Centra were numbered and lifted at the end of the day. Ribs were soaked in a weak paraloid in acetone solution, covered with foil and paper towels and left in place for lifting on the next visit. 16/06/2018 Vertebrae lifted The vertebrae 56-64 were lifted at the end of the day. 67 was loose and was also lifted. Ribs and the neural spine (50) were consolidated using increasing concentrations of paraloid in acetone, covered in foil and left in place. All in-situ material remaining was then covered with newspaper, a layer of plastic sheeting and loose clay. 04/07/2018 Excavation day 4 This and the following day were made possible by the cooperation and support of the quarry, who gave us access to the site during working hours and provided help in the form of a digger to excavate the overburden over a wide area. 19 more bones were found on the day, including five vertebrae, two of them with the neural arch intact. Star find of the day is a tooth, tentatively identified as a ratchet tooth and circular section in section, which may be significant in determining the taxonomic identity of the specimen. The ribs which had been left in place after the previous visit were lifted, in most cases jacketted. For some plastered fabric strips were used, others the more traditional method of plaster of paris and hessian strips. 05/07/2018 Excavation day 5 This turned out to be the final day of excavation. Only one more bone was found, a large rib (120). A wide area of at least 2m from any bone location was dug to below the horizon in which the bones are found discovered nothing more. The dig was completed by mid-day. The build up to an outing up North The Stamford and District Geological Society has a history of visiting this quarry. Starting in 2009 and went for 3 consecutive years.With one more organised visit there in 2014 arranged by long serving field secretary Kenny Nye. It wasn’t until the beginning of September 2017 that Kenny had contacted me to say he had spoke to the quarry foreman to arrange another visit. Bearing in mind that no one else had visited the quarry since our last visit in 2014! this was an opportunity not to be missed. The SDGS has a good group of members who are well versed with working quarries. With tried and tested methods in place from previous significant finds in the past. But as we have not travelled this far for some time I felt that we needed someone on board who knew the area well. Or more importantly and if possibly knows the geology of this quarry. As I’ve suggested before you need to do your research and get your questions out there. You would be surprised to how many people are willing to listen. I find when researching on the internet you need a few specific words to get you going in the right direction. For this field trip, it was “Jurassic marine deposits in the UK. Then let the following relevant “of on a tangent” search results run their course. Kimmeridge Clay Formations (Upper Jurassic) was the leading search result. Especially as these horizons have yielded numerous complete and fragmentary remains that grace many private and museum collections across the UK. Now interestingly after reading about numerous Kimmeridge Clay specimens being found here there and everywhere. My attention was often diverted to a rare Cretaceous ichthyosaur from Lincolnshire. Admittedly not Kimmeridge Clay Formation but two “of on a tangent” key words were found (a marine reptile Ichthyosaur) and (Lincolnshire). The rare ichthyosaur was found by the geologist John Green who bought this to the attention of the palaeontologist Dean Lomax. The geologist John Green and Lincolnshire associated together became more and more apparent in my research. After one final late night on the laptop I discovered “John Green” had conducted some research on the foreshore to where the Scunthorpe Pliosaur was found. So, there was one obvious thing to do now, that was speak to Dean Lomax as the SDGS know him quite well and find out how to contact John Green immediately to acquire his thoughts and opinions. And of course, to tag along for our forthcoming field trip. After an in-depth phone call, John has agreed to go with us which is somewhat of a relief as I felt the group could hit the ground running, now with have someone in the group who has good experience of this quarry. The SDGS met as planned at the quarry around 07.30am and were greeted by the quarry foreman. It’s an absolute must that both parties (quarry management and visiting group) are singing of the same sheet straight away. So, when the Health and Safety talk is mentioned you need to absorb everything that is mentioned. As you have to remember that the quarry has put a lot of trust in our group, if you let them down then don’t expect any return trips. We were then pointed in the general direction towards the quarry, which was a long way away and told to have a nice time and to look out for each other. So, what more can you ask for, trust is established, and head off to see what we can find. It was a pleasurable walk as we meandered down to the bottom of the quarry, with time to chat on a loose plan of action while discussing various geology write ups of the quarry. A 20-minute walk soon got us to the quarry floor. Now there is a lot of geology going on all around you, you can look through vast amounts of Chalk, Kimmeridge Clay and even Carstone Formation exposures. We were allowed 4 hours at the quarry so it’s time for less chatting and heads down looking at the ground in front of you. The quarry floor is certainly a wide-open space of Kimmeridgian clay with a scattering of Bivalves and numerous fragments of ammonites. But for me somehow felt a little un-fossiliferous so decided to go off track somewhat and scale some of the steep sided quarry sides or steps as they are known. While traversing up and down one of these banks, perhaps 20 feet from the quarry floor itself. I found myself following a trail of small Rasenia cymodoce? Ammonites. Followed these for perhaps a good 30 meters or so until the trail ended. But pressed on a bit further, and so glad I did because the next thing I was looking down at was a large vertebra. I had no idea what from at the time due its poor condition, but of course we do now. So, this was the start of the discovery of the Scunthorpe Pliosaur. The blog of mine written above for anyone who may be interested is perhaps a little light on context but I hope you get the gist of things. But please do pick out of it what you want, if you would like me to elaborate a bit more on anything of interest then I’m more than happy to discuss to the best of my ability." Some of the many vertebrae found below.
  15. Found by yours truly (D) from DE&i https://www.bbc.co.uk/news/uk-england-humber-47370838 https://www.grimsbytelegraph.co.uk/news/local-news/sea-monster-pliosaur-scunthorpe-museum-2585293
  16. Nothosaur tooth

    From the album Triassic vertebrate fossils

    A not so nice but big (3.2 cm long) Nothosaur tooth from a triassic "Bonebed" from a quarry in southern Germany (Baden-Württemberg). During the preparation the tooth broke in several pieces but I managed to glue them back... Some more pictures:
  17. Nothosaur vertebra

    From the album Triassic vertebrate fossils

    A 3.5 cm long Nothosaur vertebra from a triassic "Bonebed" in a quarry in southern Germany (Baden-Württemberg). The prep work was kinda hard, because the stone is extremely hard and the fossil is very fragile. So I think it took about 3 hours. Here is a picture of the unprepped fossil: And finished: As you can see I decided to restore a bit, but nevertheless I am satisfied with the result
  18. Ichthyosaur paddle bone?

    Hello everyone! I recently picked this item up. It was labelled as a ichthyosaur vertebrae, however I just couldn’t shake the feeling it wasn’t. I purchased it and have done some comparing to my other specimens and looking through my textbooks. I’m thinking it could be a paddle digit. The way the lines of the bone sprawl out from the centre rather than the ring formation of some of my vertebrae. Of course I could be completely wrong but there’s always that thrill of the unknown. I’ve compared it to a partial paddle I have and a humerus I also have in some photos to give an idea. Hope someone can help. Kind regards Ryan
  19. Ichtyosaur rib

    From the album Holzmaden

    A kinda interesting combination out of an ammonite, a belemnite and a partial Ichtyosaur rib. It wasn't very difficult to prep but all in all it took about 3 hours. The belemnite is about 10 cm long and the partial rib is about 11 cm long. I found this one last year in the quarry Kromer near Holzmaden. Some more pictures: And the unprepped rib:
  20. Ichthyosaur tooth

    From the album Holzmaden

    A 1.5 cm long Ichthyosaur tooth from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale).
  21. Ichthyosaur ribs

    From the album Holzmaden

    A stone with two ribs, a half vertebra and some rests of some belemnits from the quarry Kromer near Holzmaden (Lower Jurassic). All the bones are Ichthyosaur bones. The story of this one is kinda curious because on the stone was firstly only the damaged vertebra visible. But after a hit with my hammer I saw two cross sections, which belong to Ichthyosaur ribs: After some prep: And some pictures of the result: It was very tough to prep it because the stone is extremely hard and the separation layer between the fossil and stone was bad. I think all in all it took about 5 hours to finish this one. I am not completely satisfied with the result but its okay.
  22. Nothosaur vertebra

    From the album Triassic vertebrate fossils

    A Nothosaur vertebra from a quarry in southern Germany (Baden-Württemberg). Its from a thin layer where you can find many bones and teeth from various animals (a triassic Bonebed). I found this one in 2018 but I finished prepping in this month. Its my biggest Nothosaur vertebra until now with a length of a little bit more than 6 cm. Overall the prep work took about 4 hours. A picture of the unprepped fossil: And prepped:
  23. Nothosaur vertebra

    From the album Triassic vertebrate fossils

    A 5 cm long Nothosaur vertebra from a triassic "Bonebed" in a quarry in southern Germany (Baden-Württemberg). This one is kinda fragile so the prep work was hard. I often give up and tried it another time again. Here is an older state: And another picture of the current state:
  24. Nothosaur tooth

    From the album Triassic vertebrate fossils

    A 1 cm long Nothosaur tooth from a quarry in southern Germany (Baden-Württemberg). Nothosaur teeth are the second commonest kind of teeth after shark teeth in the triassic layer I hunt. Another picture:
  25. Cretaceous turtle, Oued Zem

    Hey everyone I ordered this piece last night, it will probably arrive in the course of this week. According to the listing it is a turtle bone from the cretaceous phosphate layers of Oued Zem in Morocco, but the exact species wasn't identified. But unfortunatly I am not very familiar with Cretaceous sea turles from Morocco, I just found it a nice piece to add to my Oued Zem display. So does anyone know which turtle species can be found in the cretaceous phosphate layers of Oued Zem? The only species that came out while googling was Lytoloma elegans, but I am sure some of you might know other species that lived in Oued Zem during the Cretaceous? Thanks in advance!
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