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  1. Manticocerasman

    Well preserved goniatite prep.

    Lately Natalie is surpassing me on finding cephalopods. It is not every day that we find a Crickites sp. In the field, let alone a well preserved specimen with the living chamber. So I went to work to prep her precious find: It was a very promising looking specimen and it lived up to the expectations. Crickites sp. Late Devonian ( Frasnian ) Matagne formation Chimay area ( Belgium )
  2. Doug Von Gausig

    Fossilized raindrops?

    This dolomite stone was discovered near Chasm Creek, central Arizona. It appears to have the fossilized impressions of raindrops splashing into a fine muddy surface. The stone seems to be dolomitic, as HCl causes a low fizz, unlike typical limestone's more energetic fizzing. Most of the "splashes" have the central "rebound" splash seen in my high-speed imagery of water droplets. That central rebound appears to have been broken off over time. Does my assumption that this is a somehow frozen-in-time rain shower make sense?
  3. Manticocerasman

    Devonian fieldtrip with a view

    Last Saturday we went on a new fieldtrip on one of our favorite hunting spots for Devonian fossils. Not a lot of fossils were found and the only large goniatite, although pretty at first sight turned out to be a nightmare to prep with little to no preservation further down in the nodule. On the other hand we had verry sunny day with nice views over the area and the first flowers taking advantage of the sunlight on the older scree piles. We also brought home a few small nodules with tornoceras fossils , they will take a while to prepp before we will see if they were worthwhile.
  4. On a recent fieldtrip I found a verry large and promising looking goniatite. The center of the specimen was covered in claystone. I tried a combination of mechanical prep with air scribe and treatment with potassium hydroxide. Removing matrix as close to the fossil as possible and then treating it with potassium hydroxide. I repeated this process a few times until I managed to clear out the whole center of the fossil. before and after pictures: Crickites sp. Frasnian ( Late Devonian) Belgium
  5. Manticocerasman

    double goniatite fun

    It has been a while since I've found a decent sized goniatite on my favorite huntingspot, since the good deposits are no longer accesible. But recently I did find a specimen in a recent buldozer track. sadly the specimen has taken a hit from the vehicle moving over it. The extra bonus on the other hand was that there was a 2nd specimen right next to the 1st one. I've rarely seen 2 Manticoceras sp. from this size on the same matrix, so I was very happy with this one On top of that the preparation went realy smooth
  6. DPS Ammonite

    Pachyphyllum nevadense

    This is a small form of Pachyllum nevadense that has corallites with small corallas (the circular structures that have a high rim that stick above the surface). The coralla rim diameters range from 1.25 mm to 2.5 mm and average 1.5 mm to 1.75 mm. The corallites average 2.5 mm to 8 mm apart center to center with an average of 4 mm to 5 mm apart. They have an average of 20 septa. The measurements partly overlap with those described for the species by Stumm in 1948: coralla rim diameter of 2 mm to 4 mm; average of 3 mm; distance from corallites centers of 5 mm to 10 mm; 18 to 24 septa.
  7. DPS Ammonite

    Iowaphyllum nisbeti Oliver 1978

    This Late Devonian silicified coral was first found in the Superstition Mountains by Gladys Turner Nisbet who was a botanist from Cave Creek, Arizona. I found mine nearby. Wikipedia: Link Measurements given for whole colony. Coralites vary from 10 mm to 40 mm across. Average is 15 mm to 20 mm. Oliver, W.A., Jr., 1978, Iowaphyllum (rugose coral) from the Upper Devonian of Arizona: U.S. Geological Survey Journal of Research, v. 6, no. 6, p. 797-805. Link Mindat Link
  8. ByronNWT

    Conularia?

    This is first and only one of these i have ever found only thing i found in my books remotely like it is conularia? It seems like a small one? Very gold/pyrite in colour.
  9. oilshale

    Scaumenacia curta Whiteaves 1881

    A juvenile lungfish (11cm) from the famous Miguasha fossil site, now a UNESCO World Heritage Centre. Literature: J. F. Whiteaves. 1881. On some remarkable fossil fishes from the Devonian rocks of Scaumenac Bay, in the Province of Quebec. Journal of Natural History 8(44):159-162 O. P. Hay. 1902. Bibliography and Catalogue of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey 179:1-868
  10. ByronNWT

    What the...? What is this?

    This “fossil?” Confuses me. Is it even a fossil? The shape throws me off makes me think its artificial but i found it in the middle of nowhere on rocky river shore. Geological?
  11. ByronNWT

    Fish bone or sponge?

    Another driveway find. Is this a sponge of some kind or possibly and bone from dorsal fin? Kind of looks in the shape of the ulna i cant find any reference on what an isolated one looks like. Can bones be calcified like this? i have no idea.
  12. Manticocerasman

    Double goniatite prep

    This weekend we finaly got out after those long months of lockdown. This time I am prepping a gephuroceratid that Natalie found. They are often found on top of the limestone banks, but this time she found one peeking out the center of the limestone bank. The position of the fossil didn’t make the prep any easier, since I had to grind away as much as possible of the matrix with a powertool without cutting in the fossil. Luckily I just missed a 2d goniatite hidden in the matrix with the grinder. After 4 to 5 hours of prepping with grinder, chisels, with air scribe and a
  13. Finally time to go back in the field after that long period of confinement . So this Saturday we went back to the Ardennes to prospect Frasnian ( Late Devonian ) deposits. Not a lot of finds, but it was good to be in the field again, and Natalie did find some nice quality fossils. Enjoy the pictures : A placoderm fragment: Bryozoa: not a fossil coral nodule with a few Tornoceras: same piece after a little work:
  14. Manticocerasman

    Orthocone prep

    It has been a while since I've posted on the forum, so here is a prepwork from this weekend It is a late devonian orthocone, it was quite a hustle to get this out of the rock, it broke in 3 pieces during the extraction in the field. Only a part of the shell was exposed, so I took a whole lenght of matrix back hoping that it contained a whole specimen, and it did The prepwork went realy well, and even the tip of the orthocone was preserved. The 3 parts glued back together, showing only a glimps of the orthocone: clearing out the fossil:
  15. Manticocerasman

    Devonian cephalopod prepwork

    I have acces to a more powerfull compressor since last week, so the past few days we have been quite bussy prepping lots of fossils. Those are some of my late devonian fossils I have prepped, this is my favorite one to start with, not only does it have 2 cinds of goniatites but I found it at adifferent location than the one I usualy prospect. Manticoseras sp and Tornoceras sp. Late Devonian ( Frasnian ) Nismes ( Belgium The next pictures ar all from my usual location near Chimay ( Belgium) (can you spot the int
  16. Manticocerasman

    Devonian cephalopod collection

    I finaly got around putting all my best cephalopods specimens that I collected over the past 4 years in the frasnian of southern Belgium on there place in the cabinets. They all come from the same location. (except an orthocone and a receptaculites from the same age but from a different spot ) most of it has already been posted in individual posts, but this gives an overal vieuw of the part of the collection on display. Enjoy al the Manticoceras, Crickites, Tornoceras, Bactrites, Orthocones and more
  17. Saturday we went back to the south of Belgium to check out the quarry where I like to hunt for goniatites. The last 6 months there was litlle activity in the quarry and I was hoping that things had changed by now and the would have dug further, but alas there stil was no change. Still the bad weather and the storms of this winter cleaned out a lot of debris, we did find some nice fossils. At 1 pm we had to give up searching and ran back to the car due to heavy downpour and wind. Start of the day, gray and windy , but still dry: ptospecting the rubbl
  18. This Monday we went on the last fieldtrip for this year, the weather forcast was cold but sunny so a good excuse to get out. We took te dog along and went to the quarry, A lonely excavator was operating in the far end of the pit, I went for a quick chat to let him know we were prospecting in the other side of the quarry and to ask if it was no issue for him. The fossil rich deposits had'nt moved since our last visit, but we still did find a few cephalopods. Natalie found a very promising one, the goniatite looks to be preserved completely in white calcite, I cant wait to get tha
  19. This saturday Natalie and I went on a fossil hunting trip to my favorite huntingspot in the hope to find a few devonian cephalopods. The weather conditions were cold but sunny to cloudy and the rain of the last week removed the dust from the rocks (although making the place muddy ) Not a lot had changed since our last visit, no expansion in the quarry or new scree piles so it didn't look verry prommising. But with a little perseverence we did get our haul of goniatites and orthocones. most came from the upper parts of the quarry so the were a bit wethered, although Natalie foun
  20. Manticocerasman

    Into the Devonian reefs

    Last weekend we went to a fieldtrip with the BVP ( Belgian Associaton for Paleontology ) to my favorite quarry We had the opportunity again to prospect the frasnian deposits around this fossil reef. There hasn’t been a lot of activity in the quarry since last time, so the finds were less frequent than normal, but we still did find a decent haul of fossils, mainly cephalopods. The great weather conditions and the good company made this a very fine fieldtrip and ended with a visit to a local tavern for a few refreshments. (pictures by anthonie Hellemond (c) )
  21. It has been a while since we went to my favorite hunting spot near Chimay in Belgium, so I was realy eager to go back when we got there we had a little surprise, the whole back of the quarry was transformed in a motor cicle trail, apparantly this sunday there wil be a race and a lot of the bikers were prospecting the trail on foot in preparation of the race. luckily this didnt hinder us on our search, and this opend even opportunities since they dug through some of the stoone piles to make the trail thus revieling new material to go through, although we were careful no
  22. Manticocerasman

    polishing some of my Goniatites

    I recently got a new job, and to make things even better, my job is at a company who processes and places floors and walls in stone, mostly marble. This opened a few opportunities for me , having access to a huge amount of polishing and cutting tools, so this week I gave it a try: I took 2 of my Goniatites that weren't of top quality, or to hard to prep. and today the helped me to cut the fossils and polish them. The fossils turned out really well here are my first 2 polished Manticoceras sp. from the Frasnian layers of Lompret in Belgium:
  23. Manticocerasman

    Bactrites sp.

    I've been cleaning up a few boxes with devonian fossils from the past few months and came around this nice little fellow. I cleaned him up and gave him a paraloid treatment to preserve the pyrite. It is a complete specimen of a Bactrites sp. from the Matagne shales ( Frasnian, late Devonian ) from Belgium, both phragmocone and body chamber are preserved. They are a little unusual, as the do not belong to the nautiloids as his first appearance might suggest but they have their own subclass and are considered to be the ancestors of the ammonids ( they have a ventral syphuncle like all
  24. Last weekend we made a trip to my favorite Devonian hunting spot. As usual we found a few goniatites, but apart from this we found a lot of smaller fossils like brachiopods, crinoids and even a bivalve. and a few other nice surprises. The small bivalve: glyptohallicardia sp. 2 valves and pyritised, only a few mm wide with bot halves preserved. a very nice crinoid calyx a tiny brachiopod ( Lingula ) One of the best finds of the day was a fish tooth, I’m still unsure on the species, but I think somet
  25. Today we had a field trip with the "Lithos" geology club at my favorite hunting spot. Although the day started with freezing temperatures, the sun quickly rose the temperatures during t morning and gave us a beautiful day. the last time I visited the quarry the finds were disapointing due to the lack of activity in the quarry, but today we were lucky and the past week a new acces road was being dug to the side of the quarry, straight through the Matagne slate. It didnt take long before I found my first fossils, at first a few halve goniatites, but after a while a
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