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  1. Samurai

    Metacoceras sp.

    From the album: Missouri Ammonoids, Nautiloids and Gastropods

    Found this beautiful specimen the other day while searching in the rock pile attributed to the Iola Formation. More specifically, this one was most likely found in the Paola limestone member.
  2. I am fortunate enough to have such a huge amount of Middle Devonian Givetian material that I thought it best to put the older Middle Devonian stage, the Eifelian, in its own thread. There are some spectacular fossils here as well though! I thought a good place to start would be in the Formosa Reef, which I believe is quite early Eifelian. This tabulate coral and stromatoporoid reef continues similar complexes found from the Middle Silurian, see my: https://www.thefossilforum.com/topic/84678-adams-silurian/page/3/ thread from page three onwards for details. All these Formosa Reef specimens come from a delightful gift from my good friend @Monica who is a tad busy with life at the moment but is fine and still thinking of the forum. This outcrop can be found on Route 12 near Formosa/Amherstburg, Bruce County, Ontario, Canada. This beautiful-looking specimen came to me with only a third of it revealed but I managed to get it this far after nine days of painful pin prepping. Monica found another one and posted it for ID here: https://www.thefossilforum.com/topic/105528-weird-circular-imprints-formosa-reef-lower-devonian/#comment-1172285 The specimen was identified by another Canny Canadian @Kane to be the little stromatoporoid sponge Syringostroma cylindricum. Hardly a reef-builder, but gorgeous nonetheless. It does have a little thickness to it, but not much. Beautiful! Pretty thin, actually. I love this Monica, thank you!
  3. Tidgy's Dad

    ADAM'S SILURIAN

    Hoooooooooooorrrrrrrrrrrraaaaaaayyyyyyyyyyy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Here we are at last, into Adam's Silurian. Thanks for looking. First up is the Lower Silurian or Llandovery and I begin with a problem. I posted this one incorrectly in Adam's Ordovician as it had got it's label muddled up with an Ordovician Favosites I had that has vanished in the move here, but is being replaced by kind forum member @Herb Anyway, this, I remember now I've found the correct label, is from the greenish Browgill Formation, part of the Stockdale Group from a cutting near Skelgill (Skelghyll) in Cumbria, Northern England. It seems to be a tabulate coral, but I can't find any listed for this location, only mentions of small, rare, rugose corals. It has the star shaped corallites of a Heliolitidid, but seems to be tightly packed together like a Favositidid. A couple of species of Palaeofavosites seem to be close and are a bit star-shaped,, but anyone know any better? @TqB@piranha hmm who else? The coral bit, an external mold, is a maximum of 3.5 cm across and each corallite up to 2 mm.
  4. Shaun-DFW Fossils

    Nautiloidzilla- Grayson fm beast!

    I had to stop by a work clients construction site today (he builds houses), a mere 3-4 miles from where I live. They had just dug trenches for the waterlines, so I glanced around..Lo and behold, I found the biggest Cymatoceras nautiloid I’ve ever found. Fat Albert must have eaten everything else on the surrounding acre, because I barely found anything else..LOL! I was pretty thrilled. It’s over 11.5 pounds. A friend asked me if it was an Eopachydiscus..nope, it’s a Tarrant county Grayson formation nautiloid!
  5. Tidgy's Dad

    Adam's Early / Lower Devonian

    The Devonian period is known as "The Age of Fish", but could also be known as "The Age of Brachiopods." In the Early / Lower Devonian, brachiopods reached the height of their diversity towards its end in the Emsian. We see the ancestral groups occurring, lingulids, craniids, orthids, protorthids, pentamerids, rhynchonellids and strophomenids, as well as the later successful groups we have seen before such as atrypids, athyrids and orthotetids, plus the rise of spiriferids, spiriferinids and productids and the beginning of the terebratulids. By the end of the Devonian , several of these groups are extinct or severely reduced in importance and brachiopods never quite recover. Also, the Devonian is the last time we see trilobites with such variation, large sizes and numbers and orthocerids too are much more uncommon after the rise of the goniatites. The massive tabulate coral reefs also disappear after the Devonian. Fascinating period and I hope to share some of its wonders with you. Equally, a lot of this is rather new to me, so I would be very grateful for any assistance, corrections or further information on my specimens. Thank you. The Early Devonian epoch is split into three stages, so let's start with the first of those, the Lochkovian, that began about 419 mya and finished roughly 411 mya. I have been sent a nice selection of brachiopods from the Kalkberg Formation, Helderberg Group by the Mighty @Misha, mostly. But the kind gentleperson also sent me this fascinating little bryozoan hash : It is dominated by fenestellids, which is usually the case in the Devonian, but other orders sill occur. These ones, I think, are Fenestella, but there are so many species in the formation that I wont take a guess as to species : Not sure what this one is ;
  6. Here’s the before and after with the nautiloid that realized was crystallized inside, so I decided to slice it. The polishing process made a difference in bringing out the features inside. I’m not sure if this came from the Fort Worth formation (I think it is) or Grayson. Johnson County TX. Cymatoceras sp. outdoor pics are before polishing (I’m not sure if it shows up in order of my upload, doesn’t look like it initially).
  7. Took advantage of the great weather yesterday to drive over to Western Maryland to explore some well-known sites for the first time and had a successful day! Our first stop was at an apparent Late Devonian locality outside of Flintstone where we found nothing except an interesting trackway, which I believe is Pteridichnites biseriatus, made by a brittle star. Otherwise we found absolutely no fossiliferous rock at the site, which is Locality 33 in Fossil Collecting in the Mid-Atlantic States. It's possible the site has been altered/destroyed by roadwork in the ~30 years since the book was written, but if anyone else has given it a try and has had more luck, please let me know! Always possible we were simply in the wrong spot since the directions are bit difficult. Our second stop was a Middle Silurian locality outside of Cumberland, MD where we had vastly more success and that also happens to be about as scenic as roadcuts get with the blooming dogwood trees. We found numerous nautiloid fragments, including one fairly massive one that was also very well preserved and that I managed to get out the rock in good shape (it only broke 4 times!). We also found some lovely brachiopods preserved in a silvery black color and a few large, round corals that are well preserved. We only spent about an hour, but will certainly return.
  8. Brian James Maguire

    Partial nautiloid section

    From the album: Lower Carboniferous fossils of Ireland

    Malahide formation east coast ireland
  9. Brian James Maguire

    Nautiloid section

    From the album: Lower Carboniferous fossils of Ireland

    Malahide formation east coast ireland
  10. Brian James Maguire

    Nautiloid section

    From the album: Lower Carboniferous fossils of Ireland

    Malahide formation east coast ireland
  11. Brian James Maguire

    Partial coiled nautiloid

    From the album: Lower Carboniferous fossils of Ireland

    Malahide formation east coast ireland
  12. Shaun-DFW Fossils

    My Texas Nautiloids: a special one!

    I previously posted my woodbine ammonite collection (calycoceras/conlinoceras). I’ve since sliced 2-3 that were without hope of reflecting external beauty, for lack of a better description as to why. Haha..I find a lot of nautiloids where I live due to proximity to Fort Worth/Grayson formations. Oftentimes, the spots that have mortoniceras ammonites also have occasional nautiloids. I exposed a small amount of crystallization while removing this nautilus, so I experimented with slicing this one. I’m glad I did! What a beauty. I have plenty of whole specimens (some QUITE large) that will stay whole, but this one is unique!
  13. SilurianSalamander

    Agatized/silicified cephalopods?

    Are these cephalopods in chert? They appear to be agatized as well. The first two pictures are from a chunk of chert and agate that I split to find what looks like the chambers of a nautiloid cephalopod. Is this a fossil or just some way silica forms? Thanks so much!
  14. My favorite “homeless creek” with all of its dangers (I’ve been pursued by a guy with a rifle, watched suspected drug dealers meeting, etc) yields the biggest and best macrasters and clean mortoniceras ammonites, rarely do I have to bust out the hammer and chisel. It doesn’t hurt to have a concealed carry permit..I’m looking for fossils, not to become a candidate for fossilization personally. Occasional nautiloids too. Here are a few lunch break finds from yesterday. This is near downtown Fort Worth TX. Still the Wild West! The denture clam/devils toenail brownie (lol) was interesting to me.
  15. Hello everyone! Hope you have all had a good day. I have just finished a long day of work; clearing out my old display case and bookcase, photographing my specimens, carrying my new cabinet and bookcase up from the garage. Now, I am going to post some photographs of Palaeozoic fossils I would like identification of. I will send the other fossil photos later. For any of these I would like the most specific identification possible, as I am creating labels for my fossil display. Sorry if the lighting is poor. If any of you want them, I can take more photos tomorrow. Specimen 1: Calymenid I obtained this Calymenid Trilobite from a museum. I do not know the location, although due to the large volume of commercially available fossils from the country I would suspect Morocco. I initially believed it to be a specimen of Calymene celebra, due to the shape of the cephalon and the bulging eyes, but found out that in Morocco the closely related Felxicalymene is more common. Are there any noticeable distinguishing features between different types of Calymenids one of you or I could identify on the fossil specimen? If anyone has a guide, it would be very helpful. Specimen 2: Goniatite I obtained this Goniatite from a museum. Seeing as the museum described it as coming from the Jurassic, I wanted to double check their identification, as Gonitaites were only present in the Palaeozoic, and after cross-referencing the specimen with online images, I am pretty sure it is a Goniatite. The museum's labels stated the specimen came from Madagascar, but the fossil seems to be most similar to Goniatites from Morocco. What are all of your opinions on the fossil's identity? Specimen 3: Orthocone I do not remember where I obtained this Orthocone from, but I do know it came from Morocco and that I bought it as 'Orthoceras. However, the exact taxonomy of Moroccan Orthocones seem to be in a bit of a mess, as Orthoceras was a wastebasket taxon, and is now considered to only be found in Europe. Different sources have identified Moroccan Orthocones such as this one as 'Arionoceras' or 'Orthocycloceras' (the latter name in particular was used in the 2021 DK Fossil Handbook). Which one would be the more appropriate name? Or is another name more valid? Thank you all for your support! Tomorrow, when I find the time, I will post some Mesozoic and Cenozoic animal fossils, Triassic plant fossils and some fossils I am concerned might be fake.
  16. I'll start with images I've already posted on the forum. All are from the Kansas City metropolitan area. Winterset Limestone.... Metacoceras: Liroceras: Stenodomatoceras: Undetermined: Domatoceras umbilicatum: Wea Shale.... Metacoceras: Westerville Limestone.... Domatoceras: Chanute Shale.... Mooreoceras or Pseudorthoceras: Liberty Memorial Shale.... Metacoceras: I'll add many more images in the future.
  17. Collector9658

    Metacoceras? Nautiloid cephalopod fossil

    From the album: Pennsylvanian fossils

    Phylum: Mollusca Class: Cephalopoda Order: Nautilida Family: Tainoceratidae Genus: Metacoceras?
  18. 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
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