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Showing results for tags 'strophomenid'.
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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!
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- devonian
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- crassiproetus crassimarginatus
- crassi
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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.
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- spoiler alert
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- leptostophiidae
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A nice Dictyonema flabelliforme dendroid graptolite from Oslo Fields in Norway. It's Tremadoc, Lower Ordovician in age and is thus maybe around 480 mya. Another angle :
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- bou nemrou
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From the album: Misha's Middle Devonian Fossils
Protoleptostrophia perplana Internal view of I believe the brachial valve Givetian, Middle Devonian Moscow Fm. Hamilton Group Deep Springs Road Quarry NY -
From the album: Misha's Middle Devonian Fossils
Xystostrophia umbraculum (Schellwienella umbraculum) Upper Eifelian Skaly beds, Poland- 1 comment
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- strophomenid
- brachiopod
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From the album: Misha's Carboniferous
Chonetinella strophomenid brachiopods from Mineral Wells Fossil Park. Pennsylvanian Mineral Wells Fm.? Mineral Wells, TX. Thank you @Captcrunch227 for sending me these wonderful brachiopods-
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From the album: Platteville to Decorah formation Ordovician Twin Cities
I think the two large brachiopod, one in NW corner and one SE corner is maybe new to me. The muscle ridges are very different with two parallel to each other extending from hinge line. Also seem like Upper Decorah Formation tend to have more varieties of Strophomenid brachiopods that is rarer in Middle and Lower Decorah Formation. One new thing I just learned today is Sowerbyella minnesotensis tend to be very variable in # from site to site. It is very characterized of Upper Decorah Formation as well too, being entirely absent from Middle and Lower Decorah Formation. One site had Sowerbyella minnesotensis making up vast majority of shell hash while yesterday site where I collected most of the fossils have Sowerbyella minnesotensis in low densities.-
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