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Found 18 results

  1. Liparoceras cheltiense (Murchison 1834)

    From the album Cephalopods Worldwide

    13cm. ibex zone Early Pliensbachian Early Jurassic Found at Blockley Brickworks, Cotswold, Gloucestershire, UK
  2. From the album Early Jurassic Ammonites from Southern Germany

    8cm. maculatum horizon davoei zone Early Pliensbachian From the area near Braunschweig in Lower Saxony.
  3. Amaltheus margaritatus (De Montfort 1808)

    From the album Cephalopods Worldwide

    11cm. margaritatus zone Late Pliensbachian Early Jurassic From Eype, Dorset, UK
  4. I believe I've already mentioned elsewhere that I do some prep work for an English paleontologist in exchange for raw material which I can work on for my own collection. The last batch he sent me contained among other things a concretion containing an Amaltheus margaritatus ammonite from the well known site at Eype on the Dorset coast. This was a first for me. Although I've worked on a good number of concretions in the past, I had as yet to deal with one from Eype. Here's what it looked like upon arrival. As you can see, it was easy to locate the ammonite, but I was a bit concerned because of the exposure that some weathering had gotten at it. There also may have been some other fossils under the matrix, so I decided to first start off with the abrader to see if I could find anything. It turned out that the surface was too hard to make much noticeable progress, so I turned to the scribe instead. After a bit of laborious digging it became pretty obvious that there wasn't much to find. Since the scribe work had been incredibly tedious, I then decided to give the concretion a well-placed whack, in the hopes that it would split along the lines of a typical Whitby Dactylioceras concreton. The whack was well-placed and thought out, but unfortunately, as I had feared, the ammonite split through the middle of the weathered part. Oh well, you can't win them all . I had made a photo at this stage, but unfortunately I deleted it unwittingly, otherwise I could show you the mess. Fortunately it was a clean break and I could also salvage the couple of little pieces which flew off. So the next step was to remove as much matrix as possible with the diamond edged saw from the broken-off piece and glue it back onto the rest. I also disposed of the negative part of the concretion, which reduced the size of the piece considerably. I used superglue and let it cure for 24 hours. Here's what it looked like before I continued: I took to the abrader again, hoping that I wouldn't necessarily have to use the scribe too much, for fear that the vibrations might loosen things up and managed to get this far, but the matrix was so hard in places that even working with 120psi didn't make the necessary headway. There were also some nasty little pyrite concretions causing problems. So I held my breath and, with a firm grip on the sensitive area, I started scratching away bit by bit until I had reached this stage: The weathering had seeped in between steinkern and shell, causing some loss of shell, but at least the general form was still intact. I then again turned to the abrader to finish it off: I then decided to fill in the gaps with a stonemeal mix, coated it with my favorite beeswax finish and ended up with this result: Amaltheus margaritatus 11cm. Late Pliensbachian margaritatus zone Early Jurassic From Eype, Dorset, UK
  5. Pholadomya sp.

    To increase a little the Africa forum… Personally collected, April 2017.
  6. Discohelix sinistra (D'Orbigny 1850)

    From the album Gastropods and Bivalves Worldwide

    3.5cm. With tube worms on the inner whorls and a bivalve at the mouth aperture. From the early Pliensbachian at the quarry in Fuegerolles, Normandy, France.
  7. Pseudokatosira undulata

    Shell preservation
  8. Francocerithium kochii

    Shell preservation
  9. Belemnite id please

    I went on a forage with @Barerootbonsai in the summer. We walked from Charmouth to Stonebarrow and found some great belemnites between Golden Cap and Stonebarrow Hill. They are from the Belemnite marls, Lower Jurassic ,Pliensbachian. I’m thinking there are two species here. Top two are the same and bottom one different. @TqB
  10. Lytoceras fibriatum (Sowerby 1817)

    Calcite steinkern.
  11. Pyritized phragmocone.
  12. Polymorphites bronni (Roemer 1836)

    Pyritized phragmocone.
  13. Pleuroceras salebrosum (Hyatt 1867)

    Original shell material. This species has a wide range of variation. Not all specimens have such pronounced spines.
  14. Pyritized shell. This specimen (first 4 photos) comes from the classic site on the banks of a small creek. It used to be called P.reichenbachensis after the nearest town until someone discovered that the priority lay with transiens. The last photo shows a 4cm. specimen with original shell substance from the clay pit at Buttenheim, Bavaria.
  15. Lytoceras fimbriatum (Sowerby 1817)

    From the album Cephalopods Worldwide

    11cm. Carixian, lowest Pliensbachian, Lower Jurassic. From Steinbourg, Elsass, France.
  16. From the album Brachiopoda

    Callospiriferina tumida (Buch, 1834) (?) / Callospiriferina haueri (Suess, 1854)(?) , Pliensbachian, Arzo, Swiss Confederation. 30 mm. Traded with Michele. Thanks!
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