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Found 38 results

  1. Plant vs Molusk (or neither!)

    Found this rock in Charmouth beach (south west coast of England) a few months ago. The period is early Jurassic and is generally dated to ~190m years ago. I gave it a friend and have got into a debate as to whether it is a fossilised plant or part of a mollusk. Can anyone help resolve this argument/confirm that I am right?! Thanks, J
  2. Prepping another big one

    This time it was a large Arietites solarium from the Early Jurassic Sinemurian with a diameter of 60cm. which my friend brought to me. Here's what it looked like towards the beginning of the prep. I had just trimmed off the matrix around the edges and moved on into the whorls a bit with a club hammer and pointed chisel beforehand. I had marked the point with a red line where I figured that the ribs would probably not be there any more and asked him if I should carry on nevertheless and do some carving to finish it off. He agreed, so I carried on. The matrix on these pieces can get very hard and this one turned out to be particularly stubborn. It started to get interesting however as time went on, since pieces of rib were turning up where I hadn't expected them. Just goes to show that even with experience you can make false judgements. Since I didn't want to risk damaging the ribs, I started using the abrader as well as the air pen and moved back and forth between the two. Here's how it looked after about 6 hours. It was getting even more interesting, since the ribs just kept on appearing. But the matrix started to get even harder, so I had to turn the pressure on the abrader up to 8 bar (120psi). It was also getting a little strenuous having to lift up the thing each time I had to clean the powder and grit out of the box in order to refill the abrader tank, so I was having to take a few coffee breaks in between. Here's what it looked like after another 6 hours or so. As you can see, I had discovered more ribs farther along the line. The trick is to try to follow the seam between the outer and inner whorls in order to ascertain what's under the matrix without causing any major damage. You can also see the area in between where there is still some matrix. The problem was that the ribs were there, but they had been pressed quite a bit downwards. I worked along a bit more and then sent him the following photo to ask him if I should carve the matrix within the circle or remove it and also to show him with the red line where I thought that the ribs finally disappeared. He decided that I should carve that spot, which turned out to be the right decision in the end. I then ended up discovering a few rib remnants on the way to the centre, but from there on it was mostly carving with the air pens and then smoothing everything out and removing the excess matrix with the abrader. I still had a bit of work ahead of me filling in gaps and making the odd improvement with epoxy putty. Then balancing the color on the repaired spots and finishing off with my trusty rember beeswax finish. By the time I was finished I had invested 28 hours in getting this guy done, but it sure looks to me like it was worth it. My friend too
  3. Mystery fossil / interesting rock?

    Found this rock in Charmouth beach (south west coast of England) a few months ago. The period is early Jurassic and is generally dated to ~ 190m years ago. I have soaked the rock rock in vinegar solution and gently scrubbed it with a soft toothbrush. I can see the small crustacean imprint in the middle, but I am curious RE the pattern on the top portion and grey rock in the middle. There is nothing on the reverse/I haven't been able to expose anything. Please let me know if you see anything interesting or if it’s just a rock! Thanks, J
  4. I had the good luck to spend last weekend with our Austrian member @andreas along with our friend Thomas from Thuringia. We made forays into the alpine Early Jurassic, or Lias as we call it over here, and the Triassic Tuval stage. We visited two classical sites and had a good amount of success despite limited collecting time due to approaching thunderstorms. I not only found fossils, but also 2 ticks found me. As usual, I forgot to pack my camera. Sorry about that! But at least I can show a few of the finds which I've finished preparing. First of all, some of the Jurassic finds. There's a lot of hematite in this zone which accounts for the colors. This huge thing is called Atractites sp. It's the rostrum of a species of colioid cephalopod. Believe it or not, this is only the half of it. Phylloceras sp. Schlotheimia sp. And here are a few finds out of the Tuval: Arcestes sp. Megaphyllites humilis Sagenites (Trachysagenites) eximius This one is either Trachysagenites cf. herbichi or Spirogmoceras sp. I tend to the latter. Sagenites (Trachysagenites) herbichi with a Megaphyllites sp. in the mouth aperture. A small gastropod. Probably Sisenna sp. Thanks again to Andreas for showing us a wonderful time and also for the ids. The evening at his home together with Thomas and his family was really special as well. I still have a few more things to prep, so I'll be posting some more pics later.
  5. Earliest Dinosaur Eggs Studied

    New publication on the structure and evolutionary implications of the earliest (Sinemurian, Early Jurassic) dinosaur eggs and eggshells. https://www.nature.com/articles/s41598-019-40604-8?fbclid=IwAR1YN8f-qfgAjeFHRGIa0pAWfac6KRskDk73jyar2PZ6OcRk8XccNMXn_po Photos provided by D Evans of Massospondylus egg nest with embryos @-Andy- @HamptonsDoc
  6. The theropod informally called "Saltriosaurus" is finally published after so many years as a nomen nudum: The following link is available here: Dal Sasso C, Maganuco S, Cau A. 2018. The oldest ceratosaurian (Dinosauria: Theropoda), from the Lower Jurassic of Italy, sheds light on the evolution of the three-fingered hand of birds. PeerJ 6:e5976 https://doi.org/10.7717/peerj.5976 Although Scipionyx interested me as the first dinosaur found in Italy (it happens to be named after the Roman general Scipio Africanus, who defeated Hannibal at the Battle of Zama in 202 BCE in Tunisia, ending the Second Punic War), I first heard of the dinosaur now called "Saltriosaurus" while reading the book Scholastic Dinosaurs A To Z back in 2003, but what was informally dubbed "Saltriosaurus" is now called Saltriovenator, and after being initially considered a tetanuran, it is apparently an early ceratosaur.
  7. https://www.livescience.com/63886-jurassic-mammal-relative-38-babies.html
  8. Equisetites sp.

    From the album FreeRuin's Finds

    The imprint of a stalk from an ancestor of the Horsetail. Equisetites sp. Hartford Basin Shuttle Meadow Formation Massachusetts
  9. Hello, this is a part 2 of my last thread with some of my other finds that I've found this at a site in new jersey where some footprints have been found from the Late Triassic/Early Jurassic, I am unsure about if these are footprints of sorts, any help will be appreciated thank you!
  10. Hello, I've found this at a site in new jersey where some footprints have been found from the Late Triassic/Early Jurassic, I am unsure about if this is a footprint of sorts, any help will be appreciated thank you!
  11. Semionotus sp.

    From the album Fossildude's Jurassic Fish Fossils

    Semionotus sp. East Berlin Formation, Hartford Basin, Newark Supergroup A dephosphatized semionotid from the East Berlin Formation, Hartford Basin. Found October 21, 2017

    © 2017 Tim Jones

  12. Steneosaurus sp. (St.Hilaire 1825)

    From the album Vertebrates (other than fish)

    11 mm. long tooth. Missing the point again Recieved on a trade for prep with Sebastian (belemniten). From the slate quarry Kromer in Oehmden near Holzmaden. Early Jurassic, early Toarcian Posidonienschiefer, "Schlacken".
  13. Ichthyosaurus (Koenig 1816)

    From the album Vertebrates (other than fish)

    7mm. long tooth. Missing the point Recieved on a trade for prep with Sebastian (belemniten). From the slate quarry Kromer in Oehmden near Holzmaden. Early Jurassic, early Toarcian Posidonienschiefer, "Schlacken".
  14. Scanning a small coprolite from Lyme Regis, UK, I noticed this little button-shaped inclusion. I was just wondering if anyone recognized what this might be. My only guess would be an otolith. Any ideas? I'm tempted to try to remove it to get a good look at the other side. Thanks for looking!
  15. Coprolite?

    Hello everyone, Today I was going through all my older fossils, and I found this in my box of ammonites. Obviously this isn't one, and I must have put it in that box by mistake. It looks a lot like a coprolite to me, but I have no clue from what animal. Unfortunately I don't remember anymore where I found it. There are two possibilities: either from Lyme Regis (UK), or from one of the Cretaceous beaches on the Isle of Wight. Any clue to what it could be, and maybe what location? Best regards, Max
  16. Fish tail or more likely shell?

    Hi all, Maybe this find is past identification due to erosion, but i thought it may be of interest to others Length is around 8 inches I can see similar lines to the shell / tail feature on the right of the 'solid' part.. Wondering if anyone has any idea what it might be? is it two separate fossils perhaps? All the best Ben
  17. Conifer shoot

    From the album Fossildude's Jurassic Plant Fossils

    Small shoot of the Early Jurassic conifer Brachyphyllum scotti. Hettangian. Newark Supergroup, Hartford Basin, Shuttle Meadow Formation Connnecticut.

    © 2017 Tim Jones

  18. Palaeocoma escheri (Herr, 1865)

    From the album Invertebrates

    Palaeocoma escheri (Herr, 1865) Early Jurassic Hettangian Blumenrod Coburg Germany Ophiuroid trace fossil
  19. Coelacanth Scales and Bones

    From the album Fossildude's Jurassic Fish Fossils

    Scales and bones of an Early Jurassic coelacanth, Diplurus longicaudatus. Shuttle Meadow Formation, Hartford Basin, Connecticut. Found on 11/14/2016. This is the rarest fish to find in the Hartford Basin. Even small bits of these are few and very far between.

    © 2016, Tim Jones

  20. Well preserved with shell.
  21. Semionotus sp. Part and Counterpart

    Partial Semionotus sp. - part and counterpart. Nearly complete - missing caudal fin. Species indeterminate - possibly S. micropterus? Early Jurassic, Shuttle Meadow Formation. Connecticut.
  22. I'm a huge fan of the 'abelisaurids' and while searching for any news on the lumbering predators I found this report on the new genus 'eoabelisaurus'. It shows a lot of features of late Cretaceous abelisaurs, despite coming from the early Jurassic, before the likes of allosaurus. Enjoy! http://blog.everythingdinosaur.co.uk/blog/_archives/2012/06/04/new-species-of-abelisaurid-described.html
  23. New Species Of British Ichthyosaur

    A new ichthyosaur known as Wahlisaurus has been identified from a museum specimen found in an English quarry more than 60 years ago. This is the first known Early Jurassic ichthyosaur known from England since 1986. Original paper: http://www.tandfonline.com/doi/full/10.1080/14772019.2016.1183149 Simplified: http://www.sci-news.com/paleontology/wahlisaurus-massarae-new-species-dolphin-like-reptile-03947.html
  24. Hi All, I have a new coprolite from the Black Ven area near Lyme Regis. It has what looks like undigested cephalopod beak inclusions. Can anyone out there confirm this for me? On the back side, it looks like a section through a belemnite cone, but I'm not seeing any hooks. There is also another inclusion that I can't quite figure out.
  25. A new paper regarding a new primitive Early Jurassic theropod from the Lufeng Basin of China is out: Hai-Lu You, Yoichi Azuma, Tao Wang, Ya-Ming Wang and Zhi-Ming (2014). "The first well-preserved coelophysoid theropod dinosaur from Asia". Zootaxa 3873 (3): 233–249. doi:10.11646/zootaxa.3873.3.3. Coming upon the heels of another basal theropod, Tachiraptor, Panguraptor represents the second basal theropod from the Lufeng basin (the first being Sinosaurus). Since China was so far apart from other continents yielding Early Jurassic theropods (Africa, North America, South America, India), more research is needed to determine how Early Jurassic theropods made it to China from Gondwana.
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