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Found 79 results

  1. 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
  2. U. Toarcian french ammos

    Hi guys I was wondering if you could provide me with any more info than tha label provides thanks
  3. A lovely 18" belemnite slab I've bought for my birthday (birthday belemnites are a bit of a tradition!). From the Jurassic Posidonienschiefer (Toarcian, Upper Lias) of Holzmaden - a very interesting and unusual selection of mostly the same species, one with a nice epirostrum. Not quite sure of the actual species, but it's close to Acrocoelites subtenuis and A. gracilis - neither of which usually have epirostra (the squashed bit at the tip of photo 2). It also contains a couple of bonus teeth including a Hybodus type which Sebastian @belemniten tells me is a rarity there. Apart from the fact it's a great display piece, the main reason I bought it is its faunal similarity to the basal beds of the Alum Shales around Whitby in Yorkshire, known as the "Hard Shales" (Toarcian, Bifrons Zone). There, you get accumulations of Acrocoelites subtenuis at the same sort of density - possibly conspecific with these, but never showing an epirostrum. One possible reason for this is that the epirostrum is a sexual dimorphism, connected with breeding grounds, so they only occur in specific areas at any given time. Or it may just be a different species... form with short epirostrum: orthorostrum:
  4. Ammonite ID

    Found a rather large and partially well preserved ammonite in ammonitico rosso dating early to middle Toarcian in the mountains of Epirus, Greece. Partially preserved because the other side was exposed and totally flattened. I am actually puzzled by the flattened state of the inner whorl as opposed to the outer whorl and center which appear intact. The shine is due to the paralloid-acetone mix i coated the specimen with, to prevent further deterioration. Would appreciate any suggestions to the species.
  5. I've just purchased a fine slab of belemnites from Holzmaden and the stratigraphy is given as Posidonienschifer, Lias epsilon II-102. I know that epsilon is Lower Toarcian but please could anyone enlighten me about the II-102? I particularly want to correlate this accurately with Yorkshire, if possible! @belemniten ? EDIT: I've just checked the seller's other material and one that I'd expect to be from the same beds is given as "II-12" - so @oilshale is almost certainly right with his answer below, and it seems to be near the base of the Bifrons Zone.
  6. From the album Gastropods and Bivalves Worldwide

    3 samples up to 1.5cm. long Toarcian Early Jurassic From Langlade near Nimes, France
  7. Exceptional fossils may need a breath of air to form University of Texas at Austin, November 6, 2019 https://phys.org/news/2019-11-exceptional-fossils-air.html https://www.sciencedaily.com/releases/2019/11/191106112109.htm https://www.eurekalert.org/pub_releases/2019-11/uota-efm110519.php Exceptionally preserved Jurassic sea life found in new fossil site by University of Texas at Austin https://phys.org/news/2017-01-exceptionally-jurassic-sea-life-fossil.html The paper is: A.D. Muscente Et Al, Taphonomy Of The Lower Jurassic Konservat-Lagerstätte At Ya Ha Tinda (Alberta, Canada) And Its Significance For Exceptional Fossil Preservation During Oceanic Anoxic Events, Palaios (2019). DOI: 10.2110/Palo.2019.050 https://pubs.geoscienceworld.org/sepm/palaios/article/34/11/515/574686/TAPHONOMY-OF-THE-LOWER-JURASSIC Martindale, R.C., Them, T.R., Gill, B.C., Marroquín, S.M. and Knoll, A.H., 2017. A new Early Jurassic (ca. 183 Ma) fossil Lagerstätte from Ya Ha Tinda, Alberta, Canada. Geology, 45(3). https://par.nsf.gov/servlets/purl/10066020 https://vtechworks.lib.vt.edu/bitstream/handle/10919/81874/Geology 2017 Martindale-2.pdf?sequence=1 Yours, Paul H.
  8. From the album Vertebrates

    Longileptolepis wiedenrothi Arratia & Thies, 2001 Early Jurassic Toarcian Haverlahwiese Salzgitter Lower Saxony Germany
  9. On Saturday, whilst - as I thought - recovering from a cold, I spent six hours in the blazing sunshine, hunting for ammonites in the inland exposures of the Beacon Limestone in Somerset, England. It involved a lot of physical exertion, especially for someone who was ill, with the result that it's now two days later and I'm as sick as a dog - and on my 40th birthday, too. If that's not depressing, tell me something that is. Whilst I'm feeling sorry for myself, at least I can take comfort in the fact that I made some pretty good finds. These are just the most photogenic finds, there were many others that were covered in rock and will need some prep. These need prep too, but you can at least get a good idea. Kettle for scale (ahem). Note the two belemnite phragmocones at the front. I was very pleased with this bit. I found it in-situ, and was chuffed when I turned it upside down and saw these two ammonites. The bottom one was preserved like that, with a corner missing. This one, like the previous example, has the characteristic matrix from this layer, which is absolutely packed with trace fossils. The best nautilus of the day. I found three in total.
  10. Laevitomaria sp. (Conti & Szabo 1987)

    From the album Gastropods and Bivalves Worldwide

    3x3.5cm. Complete with selenizone (Slitband) Late Toarcian From Zaouiat Cheikh Tadla Azilal Province Morocco
  11. Spent two afternoons in the workshop prepping some ammonites from the Beacon Limestone, a Toarcian deposit exposed in many places around Somerset, UK. Had a fair few disappointments, including several very large ammonites (for this area - about 8 inches) which had no centres. That's common for ammonites from this location, which is a pain because it often takes a lot of prep through sticky, tough rock before you can tell whether or not there's a centre. But there were some nice ones. I had cautiously high hopes for this large harpoceras... Which turned out justified, because this is one of the best examples of this species that I've found. The inner whorls are typically covered in quite sticky rock, and the surviving calcite steinkerns are often a little wibbly-wobbly in their preservation. I was pleased that this one retains the body chamber (or most of it). This one didn't turn out as well as I'd hoped, so I stopped short of making it perfect. It's OK. Not sure what species this is, but I have found a number with this attractive marbled surface. Two rare ammonites from this location. Phylloceras is a deep water ammonite, but these are shallow sea deposits, so they'd have to drift in. Body chambers are typically missing and they are often otherwise incomplete. I don't know what species this is. But it looks a bit unusual. Let me know if you have any ideas!
  12. Hi all, Some weeks ago, I found a site pretty rich in brachipods from the Late Pliensbachian/Early Toarcian in my area (Pedraforca Zone, SE Pyrennes) So, I made a parenthesis in my Upper Cretaceous usual issues, for a change, and I have been picking & preparing them last weeks. This site is very well studied in this paper (in French), and in fossilworks. I probably i found all the species mentioned from the site: Telothyris pyrenaica Telothyris jauberti Quadratirhynchia vasconcellosi Soaresirhynchia sp. Soaresirhynchia (Alméras, 1994) (former Stolmorhynchia) is a genus of little brachiopods first described by Alméras in a study about Portugueses Toarcian specimens, but are common in all the Iberian-Pyrenean Toarcian basin, from Portugal to South France. Unfortunately, they show great morphology diversity, and I must confess the I am not be able to distinguish one specie from another (S.bouchardi, S.flamandi, S.rustica). Maybe @ricardo could help. These are some examples: Homoeorhynchia batalleri And finally, the only Liospireferina falloti I found, though in poor condition:
  13. Pleuromya ? (Jurassic bivalve)

    Hi, I have found this piece in a well-known jurassic site where brachs abound (Late Pliensbachian/early Toarcian, Tenuicostatum biozone, Iberian-Pyrennes basin) My guess is genus Pleuromya. At species level, Pleuromya rotundata is mentioned in the zone, but I find nothing about it (I fear of an invalid or junior species). It looks like Pleuromya uniformis, of whitch @Ludwigia and @nala have posted some pictures.
  14. Can anyone please help to ID the structure at the top of this phragmocone? Apologies that the photos aren't better, but hopefully they're good enough. I have seen this structure on other fossils from this location too, but have never been able to work out what it is. The phragmocone is 4 inches long, the unknown fossil is nearly an inch long. It's from the toarcian beacon limestone, in the UK. I'm also unsure what the phragmocone is from. I suspect this is too big for any of the belemnites from this location, so presumably a largeish squiddy thing. Most of the fossils found here are ammonites, with some nautiluses.
  15. Pseudogrammoceras Sp - Belmont

    From the album Best of 2018 finds - a year in review

    Pseudogrammoceras Sp : An ammonite from Belmont d'Azergues (Rhône) toarcian (Lafarge Quarry)
  16. Hammatoceras gr pachu ? - 2 - Belmont

    From the album Best of 2018 finds - a year in review

    Hammatoceras gr pachu ? : An ammonite from Belmont d'Azergues (Rhône) toarcian (Lafarge Quarry)
  17. From the album Best of 2018 finds - a year in review

    Hammatoceras gr pachu ? : An ammonite from Belmont d'Azergues (Rhône) toarcian (Lafarge Quarry)
  18. Recently you could find "many" bones and teeth in a "Bonebed" in a quarry near Buttenheim in Germany. Too bad I was a bit too late to search in this Bonebed. As I was there it was still possible to find something but the layer was buried under about 1 meter dirt. So I couldn't really find something there. All bones and teeth come from the Toarcian. This thread of @Kasia inspired me to buy some teeth and bones from there too. So thank you for the inspiration Here are my acquirements: I bought three Steneosaurus (crocodile) teeth: The first one is about 1. 3 cm long: Detailed: The next one is a big one with a length of 2 cm. This one was found in Altdorf: The last one is damaged and small (0.8 cm long) Beside of these Croc teeth I also bought some Ichthyosaur material from there: A 1.1 cm long tooth which could be quite nice if someone didn't glued it that bad... I am not sure what I will do with this one because there seems to be another tooth in the matrix and I will maybe try to break it and glue it a bit better. Too bad the teeth are extremely fragile so I am not sure what I will do... And another small Ichthyosaur tooth with a length of 0.6 cm: And last but not least three small Ichthyosaur vertebrae: All three are a bit bigger than 2 cm. All in all I have to say that I am quite satisfied with my purchase expecially because I didn't had to pay too much money for them. Thanks for viewing
  19. Pholadomya sp.

    To increase a little the Africa forum… Personally collected, April 2017.
  20. Chondrites targionii (Brongiart 1828)

    From the album Trace Fossils

    21x11cm. Formerly C.bollensis. Burrows (Agrichnia), thought to have been used to cultivate microorganisms for feeding. The white colored substance is caused by sulfates. Posidonienschiefer Formation Early Toarcian Early Jurassic Site: Oehmden near Holzmaden, Germany.
  21. Liassic treat

    here about 11.6 Mb John Cawley,Jurgen Kriwet et al: The stem group teleost Pachycormus (Pachycormiformes:Pachycormidae) from the Upper Lias (Lower Jurassic) of Strawberry Bank, UK Palaontologische Zeitschrift,published online 20 september 2018 If, like me, you have Smith-Woodward wallpaper, you are going to love this.
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