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Found 19 results

  1. Hey all, I was thinking of getting a dremel 290 or similar engraver so that I can prepare some of the fossils I have, because at the moment I'm using nothing but needlepoints and steel bristled brushes. As you can imagine, using this is extremely slow and not very effective. I just wanted to ask if anyone had any advice on if there are better alternatives or if I need any other equipment (such as additional tips). I already have goggles to protect my eyes and a buff to protect my lungs, so that shouldn't be an issue.
  2. Ludwigia

    Microderoceras sp. (Hyatt 1871)

    From the album: Cephalopods Worldwide

    25cm. Early Sinemurian, Early Jurassic (Lias). Provenance unknown.
  3. pachy-pleuro-whatnot-odon

    Marine reptile tooth ID Lyme Regis

    Hi all, Bought this tooth online a while back. It was sold to me as "Ichthyosaurus platyodon" (which I understand to mean Temnodontosaurus platyodon) from Lyme Regis. Likely found by the seller themselves, as I know they occasionally collect fossils there. However, for the following reasons, I'm not sure about this attribution: Overall, the tooth doesn't look like your typical ichthyosaur tooth to me: It has more of an oval rather than round cross-section It's labolingually flattened Messial and distal carinae run the full length of the crown and divide the tooth into labial and lingual parts While fine striations can be seen on one side of the tooth (presumably the lingual side), the other side (which would be the labial) seems entirely smooth - though some traces of rare striations can be seen on the photographs The striations are much more similar to those of crocodile or pliosaur teeth than to the plicidentine condition so typical of ichthyosaurs The horizontal banding on the tooth surface is unfamiliar to me with respect to most marine reptile teeth I have seen, but occurs much more frequently on crocodile teeth of various species I also bought another tooth with the same attribution from the seller, more or less around the same time. This one has no striations whatsoever, has a more rounded base, is less flattened and has a more rounded tip. It also has carinae. I therefore reclassified it as a probable Goniopholis sp. crocodile tooth. Now I know that not having the root makes it more difficult to identify this particular specimen, but I was hoping someone on this forum might be able to help me, as currently it goes without label. I've considered crocodile, plesiosaur and even pliosaur, but all of these have some reservations that prevent final classification. For one, none of these groups have teeth that are typically flattened like this, nor do plesiosaurs (sensu lato, thus including pliosaurs) have carinae. Crocodiles, then again, would either have or not have striations all around the tooth. And what to make of the banding: is this just preservational, or does it reflect the internal structure of the tooth - i.e. outcome of the tooth's ontological growth? Tooth measures 18 mm and is missing the tip. Thanks in advance for your help!
  4. n cass

    What is this?

    Whitby find. Jurassic, Lias.
  5. Welsh Wizard

    My Whitby Ammonite Collection

    Hi I decided to display a few of my Whitby ammonites. Most are self found, some bought. Some are prepped by me. Some prepped by other people. One of the ammonites on the top shelf isn’t from Whitby. Guess which. Where’s it from and what is it? I’ll post some close ups in due course. Thanks for looking.
  6. To mark the occasion of this new sub forum for museums. I would like you show you some wonderful stuff in Teylers Museum in Haarlem, Netherlands. This is actually the oldest museum in the Netherlands and thus also has some really cool history attached to it and it's specimens. http://www.teylersmuseum.nl/en Besides fossils this museum also holds an art and science collection. The museum is just as beautiful as the specimens in it and a true time capsule. While it is quite a small museum, it's charm is worth the trip alone. Even the cabinets are pretty. It even has a few world firsts, such as Archaeopteryx and Mosasaurus. Now on to fossils! One of the most important specimens on display here is one of the Archaeopteryx specimens. This is actually the first Archaeopteryx as it was found before the feather and the London specimen were found. But for a long time it was labeled as a Pterodactylus. Only later was it found that it was in fact an Archaeopteryx. While very incomplete it is one of the larger animals of the genus (the third largest I think). the specimen consists of slab and counter slab. If you look close you can still see the vague impression of the flight feathers on the wings. It also very nicely shows the keratinous sheaths of the claws. Archaeopteryx lithographica Along with Archaeopteryx Teylers also has a very nice collection of the Jurassic of Solnhofen in Bavaria. They have a number of Rhamphorhynchus skeletons, lizards, fish, crustaceans and squids complete with tentacles and inksacs. Rhamphorhynchus Various fish Homocosaurus maximiliani Various critters
  7. I haven't been collecting from the Lias of Dorset or Somerset (in the UK) for a couple of years, for various reasons, obviously Covid being a major one over the last year. I'd begun to think I'd not really be able to go much again, but then we moved to Somerset, close to many exposures of material from the lower Lias (Hettangian, approx 200m years ago). So these days, I'm able to walk on the beaches every day. Living the dream! So far I've only found two small icthyosaur vertebra, but ammonites and bivalves have been a little more forthcoming. Here's a few photos of some of this year's finds so far. Apologies that my digits appear in them, I tend to use my sausage-fingers for scale. Caloceras. Before: After: Psiloceras Planorbis (after prep): Nice little ammonite in a nodule. Haven't looked up this species yet (lazy) but I have a few: Tragically incomplete. The two left most parts are not associated with this ammonite. I may try to mould the missing bits out of milliput, or find a creative genius to do it for me in return for a handful of money. The ammonite itself is actually very well preserved (though compressed), what you're seeing here is a thin layer of sticky shale, which totally obscures the thick, golden brown shell. It'll need to be abraded to reveal the shell. Psiloceras. Unknown (to me) species, presumably an intermediate/hybrid between psiloceras and caloceras, since the body chamber doesn't have much ribbing. A lovely nautilus. Quite crushed, but I like it. I told my sister in law that I was naming it after her, because, like her, it was fat, old and knackered but still worth picking up. My best fossil of the year, and easily one of my best ever. You WOULD NOT BELIEVE how painful it was to get this off the beach. I spent an hour hammering the block to get the weight down. I stopped when I looked down at my arm, and saw that my bicep was huge, trembling, and as it seemed to me, glowing red. At that point, I carefully rolled the boulder into my bag and dragged it off the beach, with only minor whimpering, moaning and crying. I hope to get this prepped as soon as lockdown restrictions ease and I can get it to the preparator. I think the fossil must be at least 15" across.
  8. Ludwigia

    Lytoceras fimbriatum (Sowerby 1817)

    From the album: Early Jurassic Ammonites from Southern Germany

    20cm. Augmented with Apoxie Sculpt from 1-3 o'clock in the first photo. Found on a plowed field in Klettgau, southwest Germany near the Swiss border where the stratigraphic info stated merely Lower Jurassic. Probably originates from the Early Pliensbachian.
  9. I was recently skimming through one of William Buckland's papers (in Geology and mineralogy considered with reference to natural theology). In the paper, he discussed (and illustrated) a squid fossil that had been found by Mary Anning, in the Lias/Jurassic of Lyme Regis in 1828 (see pic below). Would anyone happen to know in what museum this fossil currently is? Taken from Buckland (1837), plate 44'', fig. 1.
  10. I was knocked out (figuratively) by this little nodule as soon as its finder and preparator posted it. It now sits prominently in my belemnite display cupboard. Belemnites are my main interest which is the official reason I wanted it, but for some specimens it's just love at first sight. It's a Nannobelus acutus (I think - it's not always straightforwards...). They're scarce in this subzone locally, and only very rarely crop up in classic Sinemurian ammonite nodules from Dorset. In fact, I know of only one other but I'm sure there are more out there. (At other levels, and elsewhere, it's a common belemnite.) The ammonites are mostly Cymbites sp. (little, sub-spherical things), with one Asteroceras cf. margaritoides visible (there's another hiding under the belemnite). I think it took vision to decide to prep this - cracked open, you'd just see common little ammonites and a broken belemnite which a lot of people might not bother with, but it's turned into one of the most aesthetic specimens in my collection. Lower Jurassic, Black Ven Mudstone Member. Obtusum Zone, Stellare Subzone, Charmouth, Dorset, UK Nannobelus: 4.5cm Asteroceras: 1.8cm Cymbites: 1cm down to 2mm - I love the hollowed apertures!
  11. Quer

    Crinoid columnals ?

    I found yesterday this -I guess- pieces of crinoid columnals in a Lias (Hettangian) strata. In my area -Pedraforca zone, SE of Pyrenees- Jurassic sites and crinoids are rare (most sites are Upper Cretaceous), so I know very little about them. Tne only crinoid mentioned for the area and period is Pentacrinites. Can you confirm/refute my guess? Thanks.
  12. Dear TFF members, I have bought a lot of fossils from Buttenheim, Germany, Lias epsilon. The seller said that there are bones and teeth, but there were no labels attached, so I need to ID them The first one comprises belemnites and? Brachiopods? Belemnite is 8 cm, potential brachiopods - 2, 3 cm in diameter. Then a piece with a paddle bone of Ichtiozaur? Potential paddle bone 1x1.5 cm. A bivalve? 1 cm A single vert - could be of Ichtiozaur? 6cm in diameter Then several pieces with teeth - of what? The smallest one is 0.5 cm, the biggest - 1.3 cm. Two pieces with bones? 3.5 cm and 4 .5 cm.
  13. Still_human

    Ichthyosaur stomach contents

    From the album: Marine reptiles and mammals

    Cross sections of the stomach, full of squid/cephalopod hooks and beaks, of an early Jurassic ichthyosaur (Stenopterygius quadriscissus). One slice has the animals ribs, the lighter tan objects, around the stomach, while the other is entirely of the stomach contents.
  14. An unusually complete specimen although crowns are well known from this location. It has a very short stem consisting of only six or seven columnals, all of which bear cirri. Once thought to be an early comatulid, it is now thought to belong to a separate lineage of nearly stemless pentacrinitids (Hess 2014). References: Simms, M.J. 1989. British Lower Jurassic Crinoids. Monograph of the Palaeontographical Society, London:1-103, pls.1-15 (No. 581) Hess, H. 2014 Origin and radiation of the comatulids (Crinoidea) in the Jurassic. Swiss J Palaeontol 133, 23–34 Hess 2014 Origin…comatulids This was Invertebrate/Plant Fossil of the Month March 2015
  15. Terry Dactyll

    WP_20170128_14_07_18_Pro (800x646).jpg

    From the album: Lias Ammonites

  16. Fossil of the Month, January 2015. Prepping details here: Jan 2015 finds of the month A partial, extremely rare, many armed starfish, the genus was assigned to a new family Plumasteridae in 2011: A. S. Gale. 2011. Asteroidea (Echinodermata) from the Oxfordian (Late Jurassic) of Savigna, Départment du Jura, France. Swiss Journal of Palaeontology 130:69-89 This is from the same area and formation as the holotype of its species. The distinctive ossicles are common as disarticulated elements in sieved samples from Pliensbachian to Oxfordian. Excerpt from the above paper: Family Plumasteridae nov. Diagnosis: Multiarmed (12–22 arms) asteroids with broad adambulacrals which occupy the entire actinal sur- face of the arm and V distally: adambulacrals concavo- convex, 5–8 specialised interlocking articulation ridges and grooves articulate with ridges on adjacent adambulacral (modified ada2-3); abactinal ossicles with numerous lateral projections and embayments, and each carries a central large convex boss with which long, glassy, ridged spines articulate. Type genus: Plumaster Wright 1863, is the only genus included. It ranges from the Pliensbachian to the Oxfordian. Discussion: The Plumasteridae is established for the distinctive multiarmed genus Plumaster. This is distinguished from other multiarmed spinulosans such as solas- terids by the unusual boss-like spine articulations of the abactinal ossicles, and the highly modified adambulacral ossicles, which articulate by means of ridges and grooves.
  17. As often the case with brittle stars and other starfish, this shows the oral surface and is on the underside of the sandstone bed. The bed below it is a shale and the base of the sandstone represents a sudden influx of sediment which preserved the brittle star nearly intact. This was Invertebrate/Plant Fossil of the Month Sept 2014 and Fossil of the Year 2014.
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