Jump to content

Search the Community

Showing results for tags 'holzmaden'.

  • Search By Tags

    Type tags separated by commas.
    Tags should be keywords or key phrases. e.g. otodus, megalodon, shark tooth, miocene, bone valley formation, usa, florida.
  • Search By Author

Content Type


Forums

  • Community News
    • Member Introductions
    • Member of the Month
    • Members' News & Diversions
  • Fossil Discussion
    • General Fossil Discussion
    • Questions & Answers
    • Fossil Hunting Trips
    • Fossil ID
    • Partners in Paleontology - Member Contributions to Science
    • Fossil of the Month
    • Member Collections
    • A Trip to the Museum
    • Paleo Re-creations
    • Collecting Gear
    • Fossil Preparation
    • Is It Real? How to Recognize Fossil Fabrications
    • Member-to-Member Fossil Trades
    • Fossil News
  • General Category
    • Rocks & Minerals
    • Geology

Categories

  • Annelids
  • Arthropods
    • Crustaceans
    • Insects
    • Trilobites
    • Other Arthropods
  • Brachiopods
  • Cnidarians (Corals, Jellyfish, Conulariids )
    • Corals
    • Jellyfish, Conulariids, etc.
  • Echinoderms
    • Crinoids & Blastoids
    • Echinoids
    • Other Echinoderms
    • Starfish and Brittlestars
  • Forams
  • Graptolites
  • Molluscs
    • Bivalves
    • Cephalopods (Ammonites, Belemnites, Nautiloids)
    • Gastropods
    • Other Molluscs
  • Sponges
  • Bryozoans
  • Other Invertebrates
  • Ichnofossils
  • Plants
  • Chordata
    • Amphibians & Reptiles
    • Birds
    • Dinosaurs
    • Fishes
    • Mammals
    • Sharks & Rays
    • Other Chordates
  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

Blogs

  • Anson's Blog
  • Mudding Around
  • Nicholas' Blog
  • dinosaur50's Blog
  • Traviscounty's Blog
  • Seldom's Blog
  • tracer's tidbits
  • Sacredsin's Blog
  • fossilfacetheprospector's Blog
  • jax world
  • echinoman's Blog
  • Ammonoidea
  • Traviscounty's Blog
  • brsr0131's Blog
  • brsr0131's Blog
  • Adventures with a Paddle
  • Caveat emptor
  • -------
  • Fig Rocks' Blog
  • placoderms
  • mosasaurs
  • ozzyrules244's Blog
  • Terry Dactyll's Blog
  • Sir Knightia's Blog
  • MaHa's Blog
  • shakinchevy2008's Blog
  • Stratio's Blog
  • ROOKMANDON's Blog
  • Phoenixflood's Blog
  • Brett Breakin' Rocks' Blog
  • Seattleguy's Blog
  • jkfoam's Blog
  • Erwan's Blog
  • Erwan's Blog
  • marksfossils' Blog
  • ibanda89's Blog
  • Liberty's Blog
  • Liberty's Blog
  • Lindsey's Blog
  • Back of Beyond
  • Ameenah's Blog
  • St. Johns River Shark Teeth/Florida
  • gordon's Blog
  • West4me's Blog
  • West4me's Blog
  • Pennsylvania Perspectives
  • michigantim's Blog
  • michigantim's Blog
  • lauraharp's Blog
  • lauraharp's Blog
  • micropterus101's Blog
  • micropterus101's Blog
  • GPeach129's Blog
  • Olenellus' Blog
  • nicciann's Blog
  • nicciann's Blog
  • Deep-Thinker's Blog
  • Deep-Thinker's Blog
  • bear-dog's Blog
  • javidal's Blog
  • Digging America
  • John Sun's Blog
  • John Sun's Blog
  • Ravsiden's Blog
  • Jurassic park
  • The Hunt for Fossils
  • The Fury's Grand Blog
  • julie's ??
  • Hunt'n 'odonts!
  • falcondob's Blog
  • Monkeyfuss' Blog
  • cyndy's Blog
  • pattyf's Blog
  • pattyf's Blog
  • chrisf's Blog
  • chrisf's Blog
  • nola's Blog
  • mercyrcfans88's Blog
  • Emily's PRI Adventure
  • trilobite guy's Blog
  • barnes' Blog
  • xenacanthus' Blog
  • myfossiltrips.blogspot.com
  • HeritageFossils' Blog
  • Fossilefinder's Blog
  • Fossilefinder's Blog
  • maybe a nest fossil?
  • farfarawy's Blog
  • Microfossil Mania!
  • blogs_blog_99
  • Southern Comfort
  • Emily's MotE Adventure
  • Eli's Blog
  • andreas' Blog
  • Recent Collecting Trips
  • retired blog
  • andreas' Blog test
  • fossilman7's Blog
  • Piranha Blog
  • xonenine's blog
  • xonenine's Blog
  • Fossil collecting and SAFETY
  • Detrius
  • pangeaman's Blog
  • pangeaman's Blog
  • pangeaman's Blog
  • Jocky's Blog
  • Jocky's Blog
  • Kehbe's Kwips
  • RomanK's Blog
  • Prehistoric Planet Trilogy
  • mikeymig's Blog
  • Western NY Explorer's Blog
  • Regg Cato's Blog
  • VisionXray23's Blog
  • Carcharodontosaurus' Blog
  • What is the largest dragonfly fossil? What are the top contenders?
  • Test Blog
  • jsnrice's blog
  • Lise MacFadden's Poetry Blog
  • BluffCountryFossils Adventure Blog
  • meadow's Blog
  • Makeing The Unlikley Happen
  • KansasFossilHunter's Blog
  • DarrenElliot's Blog
  • Hihimanu Hale
  • jesus' Blog
  • A Mesozoic Mosaic
  • Dinosaur comic
  • Zookeeperfossils
  • Cameronballislife31's Blog
  • My Blog
  • TomKoss' Blog
  • A guide to calcanea and astragali
  • Group Blog Test
  • Paleo Rantings of a Blockhead
  • Dead Dino is Art
  • The Amber Blog
  • Stocksdale's Blog
  • PaleoWilliam's Blog
  • TyrannosaurusRex's Facts
  • The Community Post
  • The Paleo-Tourist
  • Lyndon D Agate Johnson's Blog
  • BRobinson7's Blog
  • Eastern NC Trip Reports
  • Toofuntahh's Blog
  • Pterodactyl's Blog
  • A Beginner's Foray into Fossiling
  • Micropaleontology blog
  • Pondering on Dinosaurs
  • Fossil Preparation Blog
  • On Dinosaurs and Media
  • cheney416's fossil story
  • jpc
  • A Novice Geologist
  • Red-Headed Red-Neck Rock-Hound w/ My Trusty HellHound Cerberus
  • Red Headed
  • Paleo-Profiles
  • Walt's Blog
  • Between A Rock And A Hard Place
  • Rudist digging at "Point 25", St. Bartholomä, Styria, Austria (Campanian, Gosau-group)
  • Prognathodon saturator 101
  • Books I have enjoyed
  • Ladonia Texas Fossil Park
  • Trip Reports
  • Glendive Montana dinosaur bone Hell’s Creek
  • Test
  • Stratigraphic Succession of Chesapecten

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

  1. Brevicolis

    Unknown Fossil

    Hello , I have this very interesting thing in my collection , and dont know what it is . Its 4 cm long . Maybe you guys know 😃 It was found in two pieces in the ,,Urweltsteinbruch ,, in Holzmaden , Germany . It is approximately 180 Mio. Years old ( from the Jurassic period )
  2. I see this in descriptions of a number of fossils from Holzmaden, Germany. Example: "Belemnite Youngibelus gigas, made of wooden maggots" I have seen it before, I am guessing it is some translation error. But what is its actual meaning? cheers
  3. Hi everyone. I received this ichthyosaur tooth from holzmaden, probably ohmden quarry, but I can't identify the genus. in the holzmaden area there are many species of Ichthyosaur. Maybe the most common is Stenopterygius. Can anyone help me identify this tooth please? Size approximately 1,5 cm
  4. belemniten

    pterosaur bone

    From the album: Holzmaden

    This is a 11 cm long pterosaur bone (maybe a flight phalanx) from the lower Jurassic from the quarry Kromer near Holzmaden. It was a very luck find as I found it on a stone, which I took with me because of another fossil. So I am very happy with this find although the preservation is not the best.... Two more pictures:
  5. Echinoid Express

    Diademopsis crinifera Plates

    From the album: My Echinoid Collection

    Diademopsis crinifera Shale Plates Tafelfleins Bed, Posidonia Shale Early Toarcian Age, Early Jurassic (~183 Ma) Holzmaden, Baden-Württemberg, Germany Acquired online, September 2023 A neat couple of black shale plates containing several fragmented specimens of this Early Jurassic echinoid. There are at least 8 notable specimens between the plates, some having associated spines, as well as some smaller test fragments and some loose spines. These urchins are quite small, with the largest ones only being around 1cm (.3937 inches) in diameter.
  6. juan

    Saurorhynchus jaw

    From the album: Vertebrates

    Saurorhynchus jaw, from the lower jurassic of Germany.
  7. Hi, as me and a friend visited some other friends of us in Bavaria this week, we went to the Kromer quarry near Holzmaden (Germany) which was on the way. It was my/our first fossil hunting trip. Unfortunately we haven't much time, we were only there for 2 hours but since the weather was horrible the last weeks and we were already close we wanted to take the chance. When we arrived at the quarry we already saw more than 20 cars parking there. I wasnt sure if they all go for a walk or something.. no - they all go the Kromer quarry hunting fossils. Wow! Almost 60 people were here - I really didn't expect that. The first hour we worked on larger plates on a plateau, they split much easier but the layers weren't that fossil-rich. The second hour we went to a different location...there we splitted some smaller plates, sometimes they broke but we found some good layers with a lot of ammonites. We mainly found Dactylioceras ammonites and also some clam shells(?), see below some fotos. I really like that these gold shimmering ammonites look very noble in their natural matrix. It turned out, that I am very unlucky that day.. when I splitted some plates the ammonites have always been in the area where I put the chisel. But hey, everyone has their strengths. As we are beginners we were fascinated by our finds. For me it's not only about the quality of the fossil, it is also impressive to be the first one to ever see that fossil after such a long time and it is much more special finding fossils on your own instead of buying a fossil of probably higher quality. However for our next trip we need much more time but that was a good first impression. We already plan another trip to the Kromer quarry and also to the Mühlheim quarry near Solnhofen (Germany) in September or maybe October when the Munich Fossil show takes place. Have a nice day. Max
  8. Germany is one of the top fossil-hunting destinations in Europe, having plenty of easy-to-access, highly productive localities that are visited every day by experienced collectors and families alike. The Swabian Jura (or Swabian Alb) region (southwestern Germany, near Stuttgart) has a highly significant geological heritage, which is part of the network of the UNESCO Global Geoparks since 2015. The most popular destination within the park is the area around the village of Holzmaden. In the early 20th century, several quarries dotted the area. Nowadays, the mining operations have almost completely ceased, but one or two of them can still be accessed, for instance the ‘Schieferbruch Ralf Kromer’ quarry, located in the neighboring village of Ohmden. By paying a 4 euros daily ticket, you can access the place (in our case even with the car) and collect fossils. You may keep everything you find, except for the highly unlikely case when you find something that is of scientific interest. The rock which is exploited is a finely laminated limestone, called Posidonia Shale. It has a dark colour, due to the high amount of organic matter and mineral oil. These rocks are Toarcian (Lower Jurassic, around 180 million years ago) in age. At the time a sea extended over the area, which was affected by a monsoon climate. During summer months, water stratification led to the bottom waters and sea floor being oxygen-free. As a result, bacteria and scavengers were absent: organic matter was very slowly decomposed and, if it was quickly covered by sediment washed in, it had a high chance of being preserved, turning with time into fossils. The taphonomic conditions explained above account for the often exceptional preservation of Holzmaden fossils. Several complete specimens of ichthyosaurs, plesiosaurs, thalattosuchians (so-called sea crocodiles) and fish are known. Flying reptiles and dinosaurs are extremely rare. Molluscs (bivalves, ammonites) and crinoids are very abundant, whereas arthropods and echinoderms are rare. _______________________________________ I visited the Swabian Alb Geopark in August 2022 with a friend (@Marcosaur) , stopping at the Kromer quarry for two days. Here follows a brief account of my experience: The Kromer quarry yields a very high number of ammonites, ranging in size from a few millimeters to 40 cm or even more. Brachiopods and bivalves are less common. Crinoids and fish are not preserved in the layers exposed in this quarry; disarticulated reptile bones (chiefly vertebrae) and teeth can be occasionally found and if you are extremely lucky, you may even find articulated specimens. First, here is a panoramic view of the quarry from near the entrance. The fossil-rich layers are best exposed at the opposite end, but, not knowing this, my friend and I began excavating in a different location. Soon, however, we realized that and we moved to a better site. At this point, things improved quickly. We could work on larger limestone surfaces, which split more easily, so that we could prevent the fossils from breaking. Here you can see a panoramic of the quarry from above: View of our definitive excavation site; most of the large slabs lying on the ground were packed with fossils: Ammonites were extremely abundant and they made up more than 90% of the fossils that we found. They are always flattened and pyritized, thus being golden yellow in colour. When you split a rock, you get part and counterpart. Three genera are predominant in the Kromer quarry: Dactylioceras, Lytoceras and Harpoceras. The former attains small to medium size, whereas the other two are represented by large specimens. A slab could preserve countless Dactylioceras shells on its surface, making the slab itself almost completely yellow and shining, a delight to behold! We recovered two or three Harpoceras specimens, 20 to 25 cm in size. We didn’t find any Lytoceras, only fragments; however, other people working next to us did find some and they were massive, more than 30 cm in size! Here you can see several Dactylioceras specimens: And here a massive slab, fully covered by countless Dactylioceras! Bivalves and brachiopods are usually not pyritized and dark in colour, thus being less easy to spot on the slab surface. We recovered only a handful of them, but they were quite well preserved. Unfortunately, we didn’t find any vertebrate fossil and, as far as we know, neither did any other people working during the two days that we were there. If they had, the news would have spread pretty quickly! The limestone is quite hard and it often doesn’t break along a line. The thicker the rock, the easier it can be split in flat surfaces, revealing part and counterpart of the fossil specimens. When working with large slabs, a crowbar is essential. It was by lifting such a heavy slab that we saw before our eyes a complete Harpoceras: it was our best find and we committed not to break it, by carving out a slab that we could then lift and put aside. Soon we exposed another specimen right next to it. Here you can see how that looked: Two other Harpoceras ammonites: Another Harpoceras, this time a counterpart: To sum up, this two-days trip in the Kromer quarry was highly succesfull and rewarding, despite a slow start in the first day and the hot temperatures. The trunk of the car was fully loaded by the end of the second day! I highly suggest to anyone visiting southern Germany to stop at this place, you won't be disappointed. Besides, you can then visit the impressive UrweltMuseum Hauff in Holzmaden, where many wonderful fossils are on display. I will upload a post about my visit to the museum soon. Last thing, my friend and I recorded a short video (in two parts) at the quarry, where we kept track of our progress and finds. The dialogues are in Italian only, but I guess that you could let the fossils speak for themselves! Here it is - Part 1: - Part 2: If you want further information, here are two useful links: - Website of the quarry: http://www.schieferbruch-kromer.de/ - Overview of the Posidonia shale: http://www.holzmaden.com/Holzmaden_fossils_informations.html Thank you for the attention, Italo40
  9. belemniten

    pterosaur bones (perhaps Dorygnathus)

    From the album: Holzmaden

    This is probably one of my best find so far from the quarry Kromer near Holzmaden. Its a plate with some pterosaur bones, which is very rare in Holzmaden as these are marine desposits. The bigger bone might be a Humerus. Before I was able to find this piece I only found a few isolated pterosaur bones. Hopefully I can find a complete one one day The prep of this specimen took about 5 hours. Before the prep it was visible that these are pterosaur bones so I was very surprised ... Some more pictures:
  10. belemniten

    Steneosaurus tooth

    From the album: Holzmaden

    A 1.2 cm long Steneosaurus tooth (crocodile) from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). That black fossil around the tooth is petrified wood. Some more pictures:
  11. belemniten

    Ichthyosaur tooth

    From the album: Holzmaden

    Another Ichthyosaur tooth from the lower Jurassic of Holzmaden / quarry Kromer. Its about 1.3 cm long and has a very nice root ! Some more pictures:
  12. belemniten

    pterosaur tooth ?

    Yesterday i had time to hunt in Holzmaden. Some may realize that i posted this: http://www.thefossilforum.com/index.php?/topic/69842-last-hunt-in-holzmaden-for-this-year/#comment-732544 Now this is my real last hunt in the quarry Kromer in Holzmaden (Lower Jurassic) ... I worked hard about 3 hours, but i cant find much and the material there doesnt look good. So i only find this item: This tooth looks very special ... Its 0.7 cm long (after prep 1 cm long), so it was difficult to photograph the tooth. It looks very similar to this one or ? http://www.holzmadenfossilien.de/inhalte fossilien/Flugsaurierzahn_001.html Hope somebody can help me ... Thanks !
  13. Vampire squid ancestor died in 'eternal embrace' with its dinner The Jurassic predator and prey suffocated together underwater https://www.livescience.com/jurassic-predator-prey-suffocated.html https://unfoldtimes.com/vampire-squid-ancestor-died-in-eternal-embrace-with-its-dinner/ The open access paper is: Klug, C., Schweigert, G., Fuchs, D. and De Baets, K., 2021. Distraction sinking and fossilized coleoid predatory behaviour from the German Early Jurassic. Swiss Journal of Palaeontology, 140(1), pp.1-12. https://sjpp.springeropen.com/articles/10.1186/s13358-021-00218-y Yours, Paul H.
  14. belemniten

    Plesiosaur tooth

    From the album: Holzmaden

    My first Plesiosaur tooth with a length of 1 cm from the quarry Kromer in Holzmaden, Lower Jurassic.
  15. dhiggi

    Ichthyosaur Paddle

    My daughter is totally obsessed with Ichthyosaurs at the moment and top of her Christmas list is a paddle. I’ve seen full articulated paddles worth thousands so I’ve been trying my best to manage expectations. This popped up on an auction site a little closer to budget so after negotiating a little discount I have snapped it up. It’s from the Posidonia Shale of Holzmaden, Germany (Jurassic) and has been identified as Temnodontosaurus and while I have no reason to doubt this I’d welcome your thoughts on it. My main query is regarding the tooth that can be seen among the paddle bones. Does the size of the tooth match the size of the (partial) paddle? i.e. are they likely to be from the same animal? Alternatively, is it at all plausible that tooth belonged to another ichthyosaur that lost a tooth while biting off this section of paddle? Thank you for looking
  16. belemniten

    Ichthyosaur vertrebra

    From the album: Holzmaden

    A 3.7 cm long Ichthyosaur vertebra from the Posidonia shale from the quarry Kromer near Holzmaden. Here two more pictures: And a bad picture of the unprepped vertebra: The stone was extremely hard so the prep work was very difficult.
  17. Ancient sea creatures spent years crossing the ocean on rafts – we’ve worked out how it was possible. Aaron W. hunter, he Conversation, August 10, 2020 Hunter, A.W., Casenove, D., Mayers, C. and Mitchell, E.G., 2020. Reconstructing the ecology of a Jurassic pseudoplanktonic raft colony. Royal Society Open Science, 7(7), p.200142. Abstract of open access paper PDF of open access paper Yours, Paul H.
  18. A lovely 18" belemnite slab I've bought for my birthday (birthday belemnites are a bit of a tradition!). From the Jurassic Posidonienschiefer (Toarcian, Upper Lias) of Holzmaden - a very interesting and unusual selection of mostly the same species, one with a nice epirostrum. Not quite sure of the actual species, but it's close to Acrocoelites subtenuis and A. gracilis - neither of which usually have epirostra (the squashed bit at the tip of photo 2). It also contains a couple of bonus teeth including a Hybodus type which Sebastian @belemniten tells me is a rarity there. Apart from the fact it's a great display piece, the main reason I bought it is its faunal similarity to the basal beds of the Alum Shales around Whitby in Yorkshire, known as the "Hard Shales" (Toarcian, Bifrons Zone). There, you get accumulations of Acrocoelites subtenuis at the same sort of density - possibly conspecific with these, but never showing an epirostrum. One possible reason for this is that the epirostrum is a sexual dimorphism, connected with breeding grounds, so they only occur in specific areas at any given time. Or it may just be a different species... form with short epirostrum: orthorostrum:
  19. oilshale

    Saurorhynchus sp.

    Probably Saurorhynchus brevirostris (Woodward, 1895) References: A. S. Woodward (1895) Catalogue of the Fossil Fishes in the British Museum (Natural History), Part III 1-544. Maxwell, Erin & Stumpf, Sebastian. (2017) Revision of Saurorhynchus (Actinopterygii: Saurichthyidae) from the Early Jurassic of England and Germany. European Journal of Taxonomy. 2017. 10.5852/ejt.2017.321.
  20. I've just purchased a fine slab of belemnites from Holzmaden and the stratigraphy is given as Posidonienschifer, Lias epsilon II-102. I know that epsilon is Lower Toarcian but please could anyone enlighten me about the II-102? I particularly want to correlate this accurately with Yorkshire, if possible! @belemniten ? EDIT: I've just checked the seller's other material and one that I'd expect to be from the same beds is given as "II-12" - so @oilshale is almost certainly right with his answer below, and it seems to be near the base of the Bifrons Zone.
  21. triplefacepalm

    Holzmaden/Ohmden Fossil ID

    Hey everybody! I had an opportunity to visit the Holzmaden area (fantastic museum) and split some rocks at Schieferbruch Kromer in Germany. There were plenty of ammonites and I even managed a few neat belemnite pieces I'm very happy about. But one find has me a bit stumped. It appears to be very thin, and I have the feeling it is some part of an ammonite but I have no clue where it would fit in since it isn't very spirally. The caliper scale for reference is in mm and inches (it's about an inch long). The last 2 photos are at an angle to show some of the relief. If you've got any suggestions, I'd be happy to hear them, thanks!
  22. The quarry Kromer near Holzmaden did open two weeks ago (it was closed during winter). So last Saturday I was there the first time this year and I have to say that I am kinda satisfied with my finds! I found several marine reptile teeth, some mainly incomplete bones and a fish with much potential. In this topic I want to show how I prep/prepped a plate on which originally two Ichthyosaur verts were visible. The verts are all about 4 cm big. Here is a picture of the unprepped plate: (I have the other parts...) The prep work is very difficult because the stone is extremely hard. So I have to use my air pen to remove the stone directly above the verts and then I remove the remaining thin layer with my sandblaster with about 6 bar which is probably too much for the bones but otherwise I wouldnt do any progress ... This is the current situation: Until now I prepped about 4 hours and now you see that there are even more vertebrae on the plate At least 3 and a half.... And here is the one which wasnt visible at first. I damaged it a bit but I think its not too bad. Hopefully the stone is a bit softer around this one: I think I have to work many hours on it so wish me luck @LiamL
  23. belemniten

    Ichthyosaur paddle bones

    From the album: Holzmaden

    These are four Ichthyosaur paddle bones from the lower Jurassic from the quarry Kromer near Holzmaden. The prep was very difficult because the stone was kinda hard. I gave it up several times but now its finally finished. I hitted the bones a few times so its not the nicest piece. Maybe I will try to prep it from the other side one day. Some more pictures:
  24. belemniten

    Ichthyosaur rib part

    From the album: Holzmaden

    A small Ichthyosaur rib part from the lower Jurassic of the quarry Kromer near Holzmaden.
×
×
  • Create New...