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Showing results for tags 'belemnite'.
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Found these nice fossils not on a planned hunting trip, but while working in the garden. We were filling up some flower pods whith gravel, in which i found them : 6 belemnites, 2 pieces of mineralized wood, 1 partial oyster shell, and 2 pieces of baltic jade. The highlights are definetly the pieces of wood because theyre quite rare up here and i have never found one before. Also one of them is beautifully preserved.
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Hello, i have this weird stone in my collection and it looks a bit like a belemnite or baculite steinkern to me. Theres a perfect circular hole running down the middle which seems to be the siphon. Or a flint layer formed around a belemnite which now had erodet away. What is it ? Maybe one of you knows. It was found on a beach of the baltic sea.
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From the album: Charmouth, UK 8/8/23
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From the album: Charmouth, UK 8/8/23
Picked it up initially because I thought it was a huge belemnite, but it definitely isn't. Not sure what it is, though! Man-made? Rock? Something else? -
From the album: Charmouth, UK 8/8/23
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From the album: Charmouth, UK 8/8/23
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From the album: Charmouth, UK 8/8/23
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From the album: Charmouth, UK 8/8/23
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I recently found a lot of what I believe are belemnites on a beach in Purbeck (top row in photo). Along with them there were a number of knobbly cylinders. Some were straight cylinders with a rough texture (2nd from top, centre), others were formed of lots of almost distinct nodules. Does anyone know what they could be? Thanks! (I'm afraid I don't have a ruler here, but have put a pencil in for rough scale reference)
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This ongoing journey begins as many do, with an accident. While trimming down matrix from my collection to reduce weight, in this instance a piece of the Aust bone bed, I accidentally sliced right through an ichthyosaur vertebra that I didn’t realise was there hidden in the rock. After the initial annoyance wore off, I realized that the internal texture of the bone was pretty nicely preserved and that gave me an idea, maybe I could make a histological section of the offcut piece of the vertebra. I have always wanted to learn how to make thin sections and this gave me the catalyst, so I emailed my the lab technician in my department (I study Paleobiology for my PhD) and next thing I know I was scheduled for training on how to use the departments thin sectioning and polishing lab. I hunted through my collection for a few fossil pieces that I could use as practice and decided on two Yorkshire belemnite fragments, as I have more complete examples and I thought that the rings of the belemnite would make an excellent subject. I am going to wait until I have more practice with the technique, and also have an opportunity to CT scan the block for posterity before I go grinding away what remains of the vertebra. The first test pieces: The process for making thin sections is relatively simple though it requires at least two days for the resin to cure. First you cut a wafer off of the specimen using a specialist saw which produces a very smooth cut surface. The resulting wafer from the smaller belemnite tip: Then you can bond the cut surface of the wafer to a frosted glass microscope slide using epoxy resin. These are then placed in a clamp to cure Two days later, I was introduced the thin section machine, which contains both a cutting wheel and a grinding disk with the arm attached to a micrometer. The glass slides are mounted in a vacuum chuck on the arm and then passed through the blade which cuts off excess material leaving only about 500-600 microns of sample material bonded to the slide. Next the arm is maneuvered to the grinding wheel and with successive passes ~20 microns at a time are ground off the sample until the remaining layer is only about 100 microns thick. At this point the sample is translucent and polarized light gives an idea of the crystal structure of the belemnite! Unfortunately, due to some issues with the resin mix these first two attempts didn’t turn out great but for the purposes of learning I was shown how to polish them anyway, first using a 9 micron diamond suspension which after repeat use reduces the sample to approximately 60 microns and removes the scratches from the grinding disk, then with a 3 micron suspension which does the majority of the actual polishing. Polishing slides: And here’s what the initial results look like under the microscope, I’m looking forward to trying the technique again and improving, as well as figuring out how to attach my camera to the microscope to take better pictures. The growth-rings in the belemnite are very apparent and in the one where I cut through the phragmocone end you can clearly see the siphuncle! Beautiful belemnite growth-rings from the larger specimen: The siphuncle on the edge of the phragmocone: The rings preserved in the smaller specimen: The rings at higher magnification: I’m excited to get to improve my technique and I have a few ideas for other pieces to test with. I will update this soon with more as I keep working at it. Please feel free to ask any questions you have and I’ll try to answer them. Thanks for reading, Benton
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From the album: Texas Cretaceous Fossils : Various
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During a recent (Sept.16) fossil hunting adventure I was searching for the source of the concretions containing fossil ammonites to get a better understanding of the stratigraphy I was standing in. So I went to the top of the slope/cuesta to check out the current highest layer. It was tons of saltine cracker sized bits of shale/sandstone and slabs of the same protruding out of of the lip of the ledge. No fossils were visually evident so I pulled the nearest slab out and flipped it over. The slab was smooth on the top and when flipped had a loose coating of either white calcite or shaly bits like smashed potato chips/crisps on it. Brushing the chips off revealed what you see in the images. The period is Cretaceous and possibly Triassic. The fossil concretions had the appearance of a massive mortality...like the Ordovician extinction event. Any ideas, suggestions or correct ID of what I found and absentmindedly left behind at the end of my adventure? A closeup from the left corner of the above. My first thoughts were this is some kind of marine forest of sponges, corals, plants, with other fossils mixed in. Or trace fossils like burrowing animal trails or maybe crinoids. I'm stumped having never seen this and a big dose of rookie-itis. What say you? BTW- pay no attention to the rock on the card..it was just a paperweight to keep the wind from blowing the card away.
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Only two weeks ago, when i was out rock hunting on the south western coast of Norway, I found two rocks with fossils inside them. In Norway, fossils are only found in Oslo, Trondheim and on the northern part of Norway. The only fossils found in the west are in Ritlandskratere, an ancient meteor crater, four hours away from where i found mine. The fossils are some brachiopods and clams, a trilobite tail, a belemnite fragment and a belemnite phragmocone. There could maybe be some new species or sub species. I am waiting for the response of the Natural History Museum in Oslo. I will update on the response I get.
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Cephalopod Belemnite Phragmocone UK Jurassic Oxford Clay
JamieLynn posted a gallery image in Member Collections
From the album: Jurassic Coast UK Oxford Clay Formation
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From the album: Jurassic Coast UK Oxford Clay Formation
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Marine reptile hunting at Lyme Regis, UK - April 2023
Paleoworld-101 posted a topic in Fossil Hunting Trips
It's been a while since i posted a proper trip report, so i thought i'd show you guys the spoils from my recent trip to the Lyme Regis area in early April 2023 (collecting from the 3rd to the 9th). I spent the week intensely scouring over the foreshore for any vertebrate fossils that i could, as marine reptiles are my main interest at this particular fossil site. But i found many great invertebrate fossils as well! Especially ammonites and belemnites. These fossils are all Early Jurassic in age, about 200 to 190 million years old, and come from the Blue Lias and Charmouth Mudstone formations. Most of my collecting time was on the beach between Lyme Regis and Charmouth, but i also visited Monmouth Beach west of Lyme Regis, which spectacularly showcases literally thousands of ammonites embedded within the shore platforms. This trip was my 6th to Lyme Regis overall, so i was hoping to find some vertebrate specimens that i hadn't yet found on previous trips. And things proved very successful! Despite the large amount of people on the beach over the Easter break. Firstly, some shots of the beautiful coastline. It really is an amazing place to collect. This is the beach immediately east of Lyme Regis, looking out at Church Cliffs, the Spittles, and Black Ven. This is midway between Lyme Regis and Charmouth, looking east towards Charmouth. A closer view looking towards Charmouth. This is the famous "ammonite pavement" at Monmouth Beach, west of Lyme Regis, where thousands of ammonites can be observed in the shore platform. This Mary Anning statue has recently been erected near the beach access point east of Lyme Regis (within the last year i believe). People were leaving both flowers and fossils here which is lovely. Now to the fossil finds! Including some "as found" pics of fossils lying on the beach, before i picked them up. Starting with a nice section of marine reptile rib. I suspect this is plesiosaur rather than ichthyosaur. The end of some kind of marine reptile limb or phalange. Possibly the end of a plesiosaur phalanx. This is the bottom half of an ichthyosaur humerus. I've drawn the approximate shape of the part that is missing. A small piece of ichthyosaur rib. This is a new one for me. A fragment of hybodontid shark dorsal spine. Although it is just a piece, these are relatively rare on this coast. Perhaps the quintessential marine reptile bone from this coastline, an ichthyosaur vertebra! As found on the beach and then in my hand. Finding these never gets old. This is the top of an ichthyosaur femur. The natural cross section of the bone shaft preserves amazing detail of its growth rings! A small fragment of ichthyosaur jaw, with several rounded cross sections of worn teeth. Something else i had yet to find from this area: marine reptile coprolites! One is quite beach worn, while the other is rather 'fresh'. No pun intended. As-found pictures of marine reptile bone chunks sitting on the beach. Here's a final summary of all the vertebrate finds from the trip. For a weeks worth of searching i'm very happy with this lot! And of course, the invertebrates! I particularly loved some of the larger ammonites, although carrying them off the beach would require a team of people! And these definitely wouldn't fit in my suitcase returning to Australia... A lovely belemnite. This one is a nautilus! Finally, something i wasn't expecting to find. This is a small crustacean from the Upper Greensand (Cretaceous rather than Jurassic). Overall it was a fantastic trip! And i'm looking forward to returning whenever i can. Thanks for checking out this report- 10 replies
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Is this opalised belemnite real?
MrBones posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello again. I saw this on the internet today, I was wondering if it is real. I've seen similar fossils, but this one looks a little "put together". Let me know what you think! -
Went back to Greens Mill Run with some more time for the second time this week. Found way more sharks teeth this time including some pretty exciting crow shark teeth. Need some help identifying this tooth or bone of some sort that is unbeknownst to me.
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I was able to stop by Greens Mill Run in Greenville, NC once again. Only for about an hour, was able to pick up some more fossils including larger belemnites than I found previously. Less shark teeth though, but still mostly consisted of goblin shark teeth.
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Hi guys what species do you think these are? They are oxfordian from the Oxford clay at Peterborough 1. 2.
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Hi, I 3D-printed another model, this time it's a life reconstruction of Passaloteuthis, a belemnite from the Jurassic. Several exceptionally preserved specimens have been found in southern Germany, on which I based this model. It is printed on an Anycubic Photon Mono X in white resin and painted using acrylics. The eye lenses are printed seperately from tranasparent resin and painted from the back before assembly. This will be my last 3D-print for the next time, unfortunately. Cheers, Thorsten
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Are my fossiles genuine or fake?
buraqing34 posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello, im new in fossiles collecting, absolute new beginner. I wonder if my fossiles are genuine or fake, i was so proud of my collection but after i learned that there are many fake Moroccan trilobites on sale, i had suspicions. There are some holes in trilobite and some stuff on it, could be glued which is fine because its age matters to me most, it could be glued no problem. I put them under a plastic sheet but if you wish i can take them out to take better pictures. -
Hi Forum, last week me and my little brother (9 years old) went to the Omhden (DE) quarry for our very first fossil catch! I'm new to the 'dig&find' activity and to the fossil identification i found some good ammonites, apticus, belemnites and some shells. I have a doubt about this specimen. I can't tell if it is a bad preserved terminal part of a little belemnite or a tooth. The vertical fractures that i can't find in other belemnites create me confusion... to increase my doubt, i found a beautiful Micropassaloteuthis Fistulata at the Holzmaden museum that looks pretty similar, but again without stripes. Total length 8mm Thanks a lot Paolo
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L.S., I recently purchased an old collection of plant fossils. The boxes also contained an odd couple of non-plants, which I would like to offer up for trade. Ideally, I would like to get some plant fossils in return. Photos below, with scale in centimetres at bottom. Disclaimer: The information below is "as received". I cannot guarantee provenance/identifications are 100% correct since these pieces come from an old collection, plus marine beasties are not really my cup of tea... Kind regards, Tim Specimen A: Large plate with several ammonites (Harpoceras sp.?) on a large plate from the Toarcian (Liassic, Jurassic) of Dudelange in Luxembourg Specimen B: Polished section with several belemnites (Dactyloteuthis sp.?) from the Jurassic of the area around Bayreuth in Bavaria, Germany (note: could use a re-polish to bring out the texture better).
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From the album: Early Jurassic fossils of Northamptonshire, UK
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