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Found 23 results

  1. 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!
  2. 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.
  3. Collector9658

    Spiriferid brachiopod with spiralia

    From the album: Mississippian fossils

    I acquired this specimen from fellow member @Brian James Maguire, who collected and polished this beautiful piece. The colors are outstanding! Thanks again for the amazing addition to my odd brachiopod collection.
  4. 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 ;
  5. Fossildude19

    Silurian Spiriferid brachiopods

    From the album: Fossildude's Silurian New York Finds.

    Spiriferid brachiopods from the Lewiston Member of the Rochester Shale. Lockport, New York. From left to right: Striispirifer niagarensis (Conrad, 1843) Boucotinskia sulcata (Hisinger, 1828) Howellella crispa (Hisinger, 1827)

    © 2023 Tim Jones

  6. Isotelus2883

    Weird Brach

    This brach is really odd. Possibly a very weathered (pre-burial) Parazyga hirsuta?
  7. Hi everyone, I recently purchased a collection from a retired fossil collector. Including in this collection was a box with Brachiopods from the Eifel region. Unfortunately it is harder than expected to ID them all. So here is the first batch of photo's of Brachiopods which I all believe to be Spiriferid. 1) A couple of small Spiriferid brachiopiods which seem to be from the same species: After some google searching and comparisons my best bet is "Hysterolites hystericus" 2) A larger well preserved Spiriferid Looks like a Cyrtospirifer sp. to me 3) Another larger and well preserved Brachiopod: Pretty sure this is a "Spinocyrtia ostiolata" 4) A larger Brachiopod Another Cyrtospirifer? 5) A larger Brachiopod (same species as nr 4) Another Cyrtospirifer?
  8. Please tell me what brachiopods are on this sample from Chortkiv district, Ternopil region of Ukraine? Devonian age. Large ones look like a spiriferid. Scale - 11 cm along the long dimension. Thank you!
  9. Misha

    Complete Acrospirifer

    From the album: Lower Devonian fossils

    Acrospirifer arreutus Spiriferid brachiopod Lower Devonian Glenerie Limestone Tristates group Eastern NY
  10. Misha

    Costispirifer

    From the album: Lower Devonian fossils

    Costispirifer sp. Spiriferid brachiopod Lower Devonian Glenerie Limestone Tristates group Eastern NY
  11. Misha

    Howella

    From the album: Lower Devonian fossils

    Howella cycloptera On the same matrix as large Acrospirifer Spiriferid brachiopod Lower Devonian Glenerie Limestone Tristates group Eastern NY
  12. Misha

    Leptocoelia flabellites

    From the album: Lower Devonian fossils

    Leptocoelia flabellites Spiriferid brachiopods Lower Devonian Glenerie Limestone Tristates group Eastern NY
  13. Misha

    Large Acrospirifer

    From the album: Lower Devonian fossils

    Acrospirifer arreutus Spiriferid brachiopod Lower Devonian Glenerie Limestone Eastern NY
  14. Misha

    Elita fimbriata

    From the album: Misha's Middle Devonian Fossils

    Elita fimbriata Specimen isn't in great shape, but I kept it as this is the only one I've found so far Givetian Moscow Fm. Hamilton Group. DSR
  15. Misha

    Eleutherokomma diluvianoides

    From the album: Misha's Middle Devonian Fossils

    Eleutherokomma diluvianoides Upper Eifelian Skaly beds Poland
  16. Tetradium

    100_9141

    From the album: Brachiopods of Platteville/Decorah Twin Cities Minnesota

    Zygospira sp. Apparently there are a mystery with this genus when it comes to Twin Cities. I first noticed it only from Middle Platteville Formation - 100% nonexistent from upper Platteville Formation. Much more finer costae compare to Rostricellula minnesotensis and generally smaller. Belongs in Spiriferid family despite it strong resemble to Rhyconellid family. Then after a very long absent either the same species or a very similar species popped up again in upper Decorah formation and became very abundant. I suspects the reason for this seemly weird pattern is they may be much more specialized into the type of sediments that laid on the ocean floor. The middle platteville had layers of high carbonate shale mixed in, which does not exists in upper and lower Platteville formation. Then upper Decorah formation had a harder type of shale - middle and lower Decorah formation have shale that breaks into pieces very easily. Plus from my experiences with modern Florida gastropods there are two endemic species of gastropods that had very narrow ranges. One I don't have specimens of is Sanbriel Island turret snail which is endemic to southwest mainland Florida. Not found anywhere else. The other snail species, Shiny Atlantic auger, Hastula hastata is only found generally around Jupiter Island on Atlantic side. At first it may seem like the two snail species have nothing in common but I find it interesting that they occurs in a small zone in between the carbonate sediments of far southern Florida to the keys and the sandy rubble to the north.
  17. Manticocerasman

    Spirifer with lophophore

    I was cleaning up my drawer with spiriferids from the Ardennes and I found a weathered one that I picked up for a particular reason. The suport of the lophophore of the spiriferid is partially visible. this lophophore is the feeding apparatus of the brachiopods and looks like a ring with tentacles. On spiriferids the lophophore suport is a typical spiral on both sides of the shell. The “spiral” is also the reason for the name of the fossil “Spirifer “= “Spiral-bearers” I'd love to se some more brachiopods in tff-members collections with preserved lophophores
  18. Well I'm on my way to Utah for a new career opportunity and looked up the LaFarge quarry in Paulding Co. last night. This quarry is supplied with dump trucks worth of shale from the LaFarge quarry that pulls directly from the Silica Shale formation Devonian era. The location is in the middle of nowhere and my wife gave me one hour to look around. Soon I had my five month old daughter, Clara, strapped to my chest in a baby carrier and I was quickly scrounging around looking for fossils. I can tell you that I was not disappointed though I did not locate a complete Eldredgeops roller I did walk away with some very large brachiopods and the largest horned coral I've ever collected. To anyone seeking to collect fossils in the mid-west or Ohio, this location is a must. All this came out in under an hour of searching and some of these pieces could look good after some light preparation. See descriptions below: This place is in the middle-of-nowhere Ohio. The parking lot was gravel with a portable outhouse. The nearest gas station was about twenty minutes away. I was talking to @Kane about conglomerates of fossil bits and he noted similar compositions at both Penn Dixie and Arkona. I know there's a scientific term for what this occurrence is but I can't seem to recall the word at this time. Regardless I find these settings interesting as they don't seem to preserve anything exceptional, certainly not a complete trilobite but it's neat to see so much life in one piece of sedimentary rock. This particular rock is full of pieces of bryozoans, crinoids, trilobites, and brachiopods. Someday I'll invest in an expensive microscope to examine these different pieces. I usually don't keep horned coral but I couldn't resist keeping this one. The interior calcium based structures have crystalized and it is by far the largest horned coral I've ever picked up or seen in person though they can get bigger. There were Eldredgeop cephalons and pygidiums everywhere. Similar to Penn Dixie this is a really good sign that potential complete pieces, particularly rollers are present. I believe the terms of the site are that tools such as hammers and chisels are not allowed as the shale pieces are small and brittle enough to break in hand. I believe that a few years ago access to the official LaFarge quarry was granted but that was recently retracted and a number of amateur paleontologists wrote letters to the company requesting something be done to continue to provide access to the site. I'm really glad LaFarge goes out of their way to dump some scraps for people to pick through. Site admission is free and you can keep whatever you find. Large piece of an Eldredgeops segment sticking out of the matrix surrounded by brachiopod pieces. What a scene this must have been during the Devonian. The camera doesn't do this pyritized piece of shale justice. Hopefully I'll be able to take some micro pictures later of the square crystals. One of the larger Eldredgeops pygidiums I've ever seen and I read some sources last night that the trilobites in the Silica Shale can be very large. Almost every trilobite piece I came across at the site was very large. This pygidium is almost an inch wide. There were many spiriferid strewn throughout the site. Most had both halves and exhibited excellent color. Large cephalon. More pyrite. The large horn coral. More pyrite amidst a conglomerate of fossil pieces. A complete brachiopod out of the matrix. Front view of the brachiopod. I'll have to ID this one after some cleanup and polish. I really like the color on the corals and fossils at the site. This is a light tan. Another large complete brachiopod. A long spiriferid with what appears to be both halves. This one should prep out nicely. The desert of farms and trees of western Ohio. Corn, trees, and farms all around. Another good sized Eldredgeops cephalon. Yet another horn. Large Eldredgeops cephalon poking out. Not complete but gives me hope that there might be some complete specimens at the site.
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