Search the Community
Showing results for tags 'ammonites'.
-
Fossils: Boy finds 200-million-year-old ammonite on beach at Vale of Glamorgan, United Kingdom
Oxytropidoceras posted a topic in Fossil News
Fossils: Boy finds 200-million-year-old ammonite on beach By David Grundy, BBC News, United Kingdpm, March 30, 2023 Yours, Paul H.- 1 reply
-
- 3
-
-
- ammonites
- blue lias formation
- (and 4 more)
-
Death By Ammonite" Shows Jurassic Fish's Fatal Last Meal 180 Million Years On
Oxytropidoceras posted a topic in Fossil News
'Like swallowing a dinner plate': 180 million-year-old fish may have choked to death on its supersized supper, Ethan Freedman, LiveScience, August 14, 2023 Death By Ammonite" Shows Jurassic Fish's Fatal Last Meal 180 Million Years On Racheal Funnell, IFLscience, August 2, 2023 The open access paper is: Cooper, S.L. and Maxwell, E.E., 2023. Death by ammonite: fatal ingestion of an ammonoid shell by an Early Jurassic bony fish. Geological Magazine, 160(7), pp.1254-1261. Yours, Paul H.-
- 5
-
-
-
- actinopterygian
- ammonites
- (and 7 more)
-
Found these ammonites (spiecies?) And also a few of the "flipper" looking one, last picture. I'm wondering what that could be. Part of something or trace of something? Found in svalbard, ymerbukta. Between middle jurassic and early cretaceous.
-
Recently, a box of rocks arrived in the mail from Hull, England. The rocks are specifically Ammonites in matrix. The species all seem to be Dactylioceras based on what is exposed but that ID could also change once they are prepped. I’ve just barely started fossil prepping with an electric engraver and in previous years of casual collecting the rock hammer was the only tool used. CRACK! Oh, look at that! A fossil trilobite! Prepping done. Yeah, that was it. The Dremel 290 engraver is a “gateway” tool and only with proper tungsten carbide tips replacing the original stylus does the engraver become a lot more capable at removing matrix. Off to a good start, IMO, on the first Ammonite and I’ve already discovered some of what I’ve seen in videos ...i.e. - sticky matrix, pyritic matrix, hard veins of calcite and other fun stuff. The Dremel has its place but I can see the need for an air pen/scribe already. Like I said, it’s a “gateway” tool. Surprisingly, a number of Brits in the preparation discipline/hobby have also tried out the engravers and most say it works, just slower than air tools. So when the Zoic crew get back from their vacay I’ll be placing an order with them. I did buy the 3 pack styli kit from them and like what they offer. There’s an air compressor in the garage ready and waiting. Here’s the contents of my ‘box of rocks’ and a second is en route from across the pond already. This one looked like the low hanging fruit so I’m starting with it. The Dremel with the Zoic stylus chewed right into it with chips flying. The dome reduced nicely until about halfway and I’ve run into pyritic hard stuff. Slow going. So I grabbed another tool and cut some shallow grooves to allow the stylus some chipping purchase. It really helped. Once again the chips are flying and the ribbed whorls are appearing. I’m keeping the sessions under an hour each to avoid overheating the engraver. Thus far it’s not even getting very warm. Fossil prepping technique is new to me and plowing through harder shale is not a bull in a china shop job. More like finesse work. Find the right angle, the right contact point and touch the matrix. At times it seems that the only pressure of the tool is next to nothing. Make contact, pull back to the lightest touch and Pop! Off goes the chip. Fingers crossed! So far I've only done some rough matrix removal. The higher magnification, dental tools and needle work plus air abrasion is to come. Any tips, critique, advice, comments, whatever are welcome. Steve
- 29 replies
-
- 5
-
-
-
- ammonites
- dremel 290
- (and 1 more)
-
The Ammonite Wall of Digne-Les-Bains: A Closer Look at This Geological Marvel, The Rockseeker Dalle à ammonites - Wikipedia - lots of pictures Another URL A paper is: Bert, D., Bousquet, V., Guiomar, M., Bariani, F., Hippolyte, J.C., Bromblet, P., Garciaz, J.L., Fleury, J., Mathieu, P., Pagès, J.S. and Tardieu, P., 2022. The Geotouristic Project “the Geological Adventure” to the Rescue of an Iconic World Heritage Geosite, the Ammonites Slab of Digne-les-Bains (National Geological Nature Reserve of Haute-Provence and Unesco Global Geopark, France). Geoheritage, 14(3), p.101. PDF of preprint of Bousquet et al. (2022) - Sorry, no figures Abstract and paywalled paper A field trip guidebook that includes the "ammonite slab" is: Livret-Guide d'excursion géologique, congrès de l'Association des paléontologues français, 3-5 Mai 2007 Yours, Paul H.
- 2 replies
-
- 3
-
-
- alpes de haute-provence
- ammonite wall
- (and 10 more)
-
From the album: Triassic ammonites
3 nice Dinarites asiaticus from an old collection, coming from Mangyshlak in Kazachstan. Each one has approx. 3 - 4 cm, lower triassic, upper skythium T1 -
The Biggest Ammonite Fossil Ever Found Was A Whopping 1.8 Meters Rachel Funnel. IFL Science, June 9, 2023 Parapuzosia seppenradensis An open access paper is: Ifrim, C., Stinnesbeck, W., González González, A.H., Schorndorf, N. and Gale, A.S., 2021. Ontogeny, evolution and palaeogeographic distribution of the world’s largest ammonite Parapuzosia (P.) seppenradensis (Landois, 1895). Plos one, 16(11), p.e0258510. Another paper is: Scott, G. and Moore, M.H., 1928. Ammonites of enormous size from the Texas Cretaceous. Journal of Paleontology, pp.273-279. Yours, Paul H.
-
Well, this year we did not battle the gods of snow and mud. The temperatures were also not scorching this year, with a nice breeze and a hint of a drizzle coming into the area instead. This Baculite Mesa location is always a (WIPS) Western Interior Palentological Society favorite led by our respected leader Malcolm Bedell. Several experts on the site were in attendance, so good advice and information was graciously provided as always ... Looking toward the mesa. The helpers are READY ! .. they did a good job this time. The hike there and back took a good three hours of time. Exercising their little muscles for a dad win. Only have a few of those so they are treasured. Comon' dad, I wanna climb ! Ok, first, we must stop off and smell the flowers blooming in the desert this time of year. This is the typical presentation of the Baculites, usually as casts. Or eroding quickly out of the formation. We have had tons of rain and snow this year, so their scattered skeletons were everywhere. Generally I pick up a few as giveaways. Still some of the original shell on this one. A good example of what you will usually find in the area. I was most interested in exploring the Tepee Buttes this year. These carbonate deposits were created by cold methane seeps. These seeps, in turn, colonized by microbes that fix the chemical energy, supporting a vibrant marine community. There are at least half-a-dozen surrounding the local area. Inoceramus sp. are common at the vent sites. I believe these bivalves are Nymphalucina occidentalis and are common on the buttes. They often are filled with calcite crystals. A bit of Inoceramus sp. shell You can also find traces of the baculites in these formations as well. The climbing was the best part for the kids. Several of the baculite fossils found that day had these large round concretions attached. Our local resident expert indicated that these concretions hid crab predation marks. Large predation entry points created when the crab popped open the shell like a tin can, to feed on the baculites, as they came to rest on the sea floor. The second site was better this year. My daughter was the first to flip what she thought was a stone. Low and behold ! ... a male ammonite fossil. Dad found the female. Lying in a wash, an arroyo, at the second collection location. A few more finds .. nothing to write home about, but they will be great for schools and to give away to those future fossil hunters. Cheers, Brett
- 15 replies
-
- 15
-
-
From the album: Triassic ammonites
Paratropites sp., Glamoc, Bosnia. Upper Karnium, Tuval 1 Diameter is approximately 7 cm -
Would like to see other members Pawpaw fm engonoceras ammonites for comparison. I have been prepping out ones with nice colors and would love to see others out there.
- 6 replies
-
- 4
-
-
- ammonites
- engonoceras serpintinum
- (and 1 more)
-
BVP Fieldtrip to Solnhofen Limestone (Jurassic of Germany) + Museum visit
ziggycardon posted a topic in Fossil Hunting Trips
Hi Everyone! A couple of days ago I returned from a fieldtrip to the Solnhofen region in Germany. The trip was organized by my fossilclub the BVP as well as my friend and professional paleontologist Jonathan Wallaard who led the trip. During our 4 day stay we visited 3 different quarries and the Burgermeister-Müller-Museum in Solnhofen. The Solnhofen Limestone is probably one of the most famous Konservat-Lagerstätte in the World. Dating back to the late Jurassic, Tithonian around 152 - 150 million years ago. During this time this area was a tropical archipelago in the Tethys Sea with many small islands and shallow lagoons. Due to its exceptional preservation we have an extensive record of the marine fauna as well a some knowledge of terrestrial species which inhabited the islands (which should have been located around 30 km from the mainland if I heard correctly from one of the quarry owners.) These seas were home to multiple species of ammonites, belemnites and squids; crinoïds like the free-floating Saccocoma; Echinoïds and Starfish; Horseshoe crabs, lobsters, crabs and schrimps; as well as sponges, corals, jellyfish, bivalves, gastropods and brachiopods (which are relatively rare finds.) But also a large diversity of bony fish (some of which could reach multiple meters in length), Hybodont sharks, Chimaera's as well as marine reptiles like the Ichthyosaur "Aegirosaurus", marine crocodiles, turtles and Pleurosaurus. The islands were home to Cycads and Araucariaceae trees, but also by many insects like dragonflies and beetles, reptiles like Sphenodonts and Squamates. Though the most famous of its inhabitants must have been the pterosaurs like Pterodactylus and Rhamphorhynchus as well as some dinosaurs like Compsognathus, Juravenator, Sciurumimus, Archaeopteryx and Alcmonavis. Our first day of digging was on friday (may 19th) at the BGM hobbysteinbruch in Solnhofen which is part of the Mörnsheim Formation (150,8 - 150 mya). https://www.solnhofen-fossilienatlas.de/siteinfo.php?section=sites&siteid=75&sitename=Solnhofen Hobbybruch The main fossils that could be found in this quarry were ammonites, aptychi, coprolites as well as fish. Our group of around 30 people assembled at the quarry at 10 o'clock and after a few words from the quarry owner and Jonathan we set of to dig. An overview of the quarry before we started digging. A couple of minutes later... Jonathan pointed me and my good friend Tom to a good place to dig and so we started cleaning debri so we could start digging. Since the Plattenkalk is layered it is always a good stategy to find some plateaus where so can hack away chunks which you can later split (which I suppose most of you already know). Pic of my hole in which I was working Unfortunately it turns out that the spot I picked must have been a public toilet as pretty much everything I found the first half of the day where coprolites, which turned into a running joke that day I was lucky enough to find a fish early one, though still entirely entombed in the rock but Jonathan warned us to look for bones into the cracked stones and that's how I managed to find it. Will require quite some prep work though. Later that day I started finding multiple Aptychi, Ammonites as well as a rare Bivalve. A plate with 3 ammonites (probably Neochetoceras steraspis) An ammonite with the Aptychus still in place which was found by one of the other members. Our club founder Luc, found this large piece of decorative slab which almost looked like it is petrified wooden dining table. Not a fossil but still cool as heck. And Tinneke managed to find a lovely fish jaw which was excavated by the help of Jonathan. While I didn't take pictures of the following, quite some members found fossil fish (some around 40 cm in lenght) and crustaceans like schrimp.
- 30 replies
-
- 12
-
-
-
Hello all. I have these two ammonite halves in my and they are two different specimens, Can anyone confirm the are authentic. The one with blue background looks normal but the other looks odd and I'm concerned they are fake. Thank you
-
Coming up pretty soon, I'll find myself traveling through Glendive and would absolutely love to get my hands dirty looking for some good fossils. Nothing too crazy: ammos, baculites, belemnites and the like (although I certainly wouldn't turn down legal dino bits, if anyone is really willing to give a spot like that up ). I have a secret spot closer to Great Falls, lots of ammos and belemnites, that I'm willing to trade for some insider knowledge out near Glendive! Thanks all, happy hunting!
-
Hunting trip for Sinemurian ammonites (Transcarpathian region, Ukraine)
Svetlana posted a topic in Fossil Hunting Trips
Hello to all. Some photos from a recent trip.
- 22 replies
-
- 21
-
-
-
It has been a while since I've posted anything. Not a lot of finds recently. But I've done some prepwork: 1st a little cenomanian ammonite from the chalk: Shloenbachia varians Cap-Blanc-Nez and an other ammonite, from the Kimmeridgian deposits on the French coast: probably Pectinatites sp. I had to consolidate the back, the fossil started to crack during the prep.
- 10 replies
-
- 8
-
-
-
- ammonites
- cenomanian
- (and 2 more)
-
Hello everyone! I am new to the world of fossils and even more so to the preparation. Since I'm doing this by myself, I still don't know how to recognize each type of rock, so it makes it more difficult for me to figure out what type of motodo to use for preparation. In the pictures they look grey/greenish but in person they look whiter. Also, the cloth on the bottom is clear white while in the picture it looks blueish... So, let's take these 4 fossils as examples: 1)Is there a way to know if when preparing them I will find more parts of the fossil inside the rock or it is only the outer part that has that shape and inside both the fossil and the matrix are one single thing? 2) This other case is very similar to the previous one, so I think the answer would be the same. In any case, I would like to know how they would approach each case: 3) In this case, in my opinion, there is a belemnite on an ammonite that is covered by sediment. Anyway you can see a part of the ammonite where the sediment has been lost. Again, what do you think would look good to do to this one? 4) Finally we see an ammonite discovered on the surface of a rock. I don't know if there is almost anything to do in this one, but any suggestion will be good to take into account. Also, what are your thought on the Dremel 290? I cannot afford any better tool. What other tools would you recommend? Many thanks in advance to all who are interested. Greetings, Alfred
-
I've read all kinds of articles and posts about MIXING Paraloid, but having never used it, I don't know how much TOTAL VOLUME to mix. I'm planning on preparing some brachiopods (some are broken) and a couple of medium (9-10") ammonites, which are fragile. I'll start with a 5% solution, since it seems best to start with a minimal amount, and work up if needed.
-
Happy to have found this forum, I've recently started prepping ammonites, and look forward to finding out more about the process, and learning from you. Currently working on a number of rocks that I purchased online from Whitby, most are heavy on the pyrite. One has 2 tiny ones on the main fossil, and from seeing other specimens of multi blocks, that is my ultimate goal. Any leads appreciated!
-
Ammonites as sacred objects, Shaligrams, India - podcast
Oxytropidoceras posted a topic in Fossil News
Ammonites as sacred objects, Shaligrams, India - podcast "Shaligrams are all at once fossils, divine beings, and intimate kin with families and worshippers." The book is: Shaligram Pilgrimage in the Nepal Himalayas by Holly Waters. Amsterdam University Press, IBSN 9789463721721 Your, Paul H. -
North Texas (ammonites, etc) - Anyone want to meet up?
turtlesteve posted a topic in Fossil Hunting Trips
I'm considering traveling to Texas as my kids REALLY have the fossil bug right now. I am thinking to hit sites in northern TX near lake Texoma and north sulfur river area, as they want to find ammonites. I am sure I can find decent sites on my own, but if anyone in the area has suggestions, or wants to meet up to collect somewhere, shoot me a note. It would be somewhat a one time trip for us, since we live in South Carolina, and I want to make it worthwhile for them. And, I could certainly provide some reciprocal intel / guidance on SC collecting sites (Summerville/Charleston) where I have done extensive collecting. Thanks, Steve -
Peltoceras sp. Upper Callovian. Volga River, Sarátov (Russsia)
phylloceras posted a gallery image in Member Collections
From the album: Ammonites of the Betic Ranges (Spain) and world
-
Peltoceras sp. Upper Callovian. Volga River, Sarátov (Russsia)
phylloceras posted a gallery image in Member Collections
From the album: Ammonites of the Betic Ranges (Spain) and world
-
Neocosmoceras sayni (Simionescu, 1899) (m). Upper Berriasian (Boissieri Zone). Montpelier, Hérault (France)
phylloceras posted a gallery image in Member Collections
From the album: Ammonites of the Betic Ranges (Spain) and world
-
- 2
-
-
- ammonites
- berriasian
- (and 1 more)
-
Epipeltoceras treptense, Upper Oxfordian (Bimammatum Zone). Betic Range, Spain
phylloceras posted a gallery image in Member Collections
From the album: Ammonites of the Betic Ranges (Spain) and world
-
From the album: Ammonites of the Betic Ranges (Spain) and world
Epipeltoceras bimammatum, E. semiarmatum, E. semimammatum. Upper Oxfordian (Bimammatum Zone). Betic Ranges, Spain
