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Showing results for tags 'spiriferida'.
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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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- acanthopyge
- acanthopyge contusa
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I bought this spiriferida some time ago and I got a question about it. How you can recognize if the fossil is the shell or the internal mold of the shell?
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- brachiopd
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From the album: My collection in progress
Cyrtospirifer verneuilli Murchinson 1840 Location: Barvaux-sur-Ourthe, Wallonia, Belgium Age: 382 - 372 Mya (Frasnian, Upper Devonian) Measurements: 6,6x3,5 cm Kingdom: Animalia Phylum: Brachiopoda Subphylum: Rhynconelliformea Class: Rhynconellata Order: Spiriferida Family: Cyrtospiriferidae -
New Carboniferous- Permian brachiopods from Klaipeda district Western Lithuania
D.N.FossilmanLithuania posted a topic in Fossil ID
Good morning everyone. This summer I was in Klaipeda district (Western Lithuania) for several days and found some interesting brachiopod fossils in dolomite boulders that probably date back to Carboniferous- Permian times. Please help to identify genera of these brachiopod specimens, it would help much to know the precise age of each boulder. The largest brachiopod specimens are up to 3 cm length, the smallest rhynchonellid is 5 mm length.
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Carboniferous and Permian boulders in Lithuania- discovery needs confirmation!
D.N.FossilmanLithuania posted a topic in General Fossil Discussion
Dear Guys, During the last several years i detected unknown truth talking about Lithuanian boulders- the Carboniferous and Permian marine rocks are very numerous and their age is various- there can be found almost each stage of Carboniferous and Permian. The main rock types are three- dolomite and limestone with masses of brachiopods that is various in color, stromatolite limestone with mollusks and unidentified cephalon like fossils, and the last- lacustrine limestone with coelacanth scales and possible plant remains (Carboniferous rhabdodermatids are very numerous). Carboniferous period and Early- Middle Permian was not known in Lithuanian glacial boulders so I very need the strong expert, especially who works on Carboniferous- Permian brachiopods. If my age determinations are correct then I will write the scientific book about this discovery and i think there is huge possibility that many of these boulders could be transported by someone glaciation from Northwestern Russia (or Northern Ural) because there are big areas of Devonian, Carboniferous, Permian and Triassic rocks near surface and Northern mountains potentially could be the cold center at some glaciation period in the Pleistocene. I will show all the pictures with fossil identifications and size, maybe someone will tell the opinion about the taxon and age possibilities. Any contact detail or other important information is very welcome! First image- Angiospirifer (Late Carboniferous), 1.1 cm length Second image- Anthracospirifer (Middle- Late Carboniferous), 1.8 cm length third image- Archaeocidaridae sea urchin plates (Carboniferous), 5- 8 mm diameter Fourth image- unidentified brachiopod species from Carboniferous- Early Permian (8 mm- 1 cm length) Fifth image- Atomodesma? bivalves from Kungurian boulder with Waagenoconcha brachiopod (1.7- 2.3 cm length)
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- athyridida
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Dear Guys, Few weeks ago I found these brachiopod remains in Klaipeda district (Western Lithuania) and I don't know which genera they belong to. I think the age should be Late Devonian or Early Carboniferous. Please help to identify these remains. Best Regards Domas
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Found as surface float on the scree pile at the Windom exposure. A very common fossil in Hamilton group sediments. Similar to Emanuella praeumbona, distinguished from E. praeumbona by the hinge width; the hinge of A. umbonata spans the width of the valve, while that of E. praeumbona is narrower. A. umbonata has a nearly flat brachial valve, while that of E. praeumbona shows a convex profile. Full-sized specimens of A. umbonata are also not as large as E. praeumbona. References: Wilson, K. A. “Field Guide to the Devonian Fossils of New York” (2014). Paleontological Research Institution Special Publication No. 44. Linsley, D. M. “Devonian Paleontology of New York” (1994). Paleontological Research Institution Special Publication No. 21. Hall, J. Palaeontology of New York v. 4. (1867) Fossilworks. http://fossilworks.org
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- a. umbonata
- ambocoelia
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Found as surface float near the top of the Windom exposure, a few feet below the Genundewa Limestone at Penn-Dixie Quarry in Hamburg, NY. A very common fossil in Hamilton Group sediments. Similar to Emanuella praeumbona, distinguished from E. praeumbona by the hinge width; the hinge of A. umbonata spans the width of the valve, while that of E. praeumbona is narrower. A. umbonata has a nearly flat brachial valve, while that of E. praeumbona shows a convex profile. Full-sized specimens of A. umbonata are also not as large as E. praeumbona. Originally designated Orthis umbonata. A. umbonata has been defined as the type species of Ambocoelia by Hall. References: Wilson, K. A. “Field Guide to the Devonian Fossils of New York” (2014). Paleontological Research Institution Special Publication No. 44. Linsley, D. M. “Devonian Paleontology of New York” (1994). Paleontological Research Institution Special Publication No. 21. Hall, J. Palaeontology of New York v. 4. (1867) Fossilworks. http://fossilworks.org
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- a. umbonata
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Found as surface float on the scree pile at the Kashong exposure. Originally assigned to Delthyris, reassigned to Spirifer, Acrospirifer, and Patriaspirifer. Alternate spellings: P. duodenaris, P. duodenaria, P. duodenarius. Does not appear in Fossilworks or Wilson’s “Field Guide to the Devonian Fossils of New York”. Classification information from Fossilworks entry for Patriaspirifer genus. Reference: Linsley, D. M. Devonian Paleontology of New York. (1994) Paleontological Research Institution Special Publication 21. Hall, J. Palaeontology of New York v. 4. (1867) Fossilworks. http://fossilworks.org Yale Peabody Museum Collections website (http://peabody.yale.edu/collections/invertebrate-paleontology)
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- brachiopod
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From the album: Various
Spiriferida sp. Flea market, Paris.
