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Showing results for tags 'upper carboniferous'.
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Large compressed fossil wood in Upper Carboniferous Brownsville PA
NickG posted a topic in Fossil Hunting Trips
I am currently traveling up north toward NE Ohio. On the way up while driving on US-40, I stopped off at sizable outcrops of the Monongahela Group just NW of Brownsville, Fayette County, Pennsylvania. In fallen blocks of sandstone, I came across these compressed fossilized wood. 7.1 mm between lines on the paper. Stupidly I forgot to grab my scale bar from my truck. I also stopped by Washington PA to check out the outcrops reported behind the Walmart and Sam’s Club on Trinity Point Drive. It appears these have become very badly eroded and overgrown. Maybe there’s a trick here or some better options to find fossiliferous material here but I couldn’t work it out.-
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- upper carboniferous
- upper pennsylvanian
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Hi group! What is your opinion? I bring you this rarity, which seems to be divided into segments, something I had never seen around here until now in my Carboniferous area. It reminds me slightly of an arthropod, maybe it could even resemble an arachnid. Or maybe they are just plant remains! Note that there are some sort of indentations in some of the fossil segments and there is an area (vaguely reminiscent of an abdomen) that is oval. It comes from the Upper Carboniferous Estephanian B (Saberien) of León, Spain. Alethopteris zeilleri megafloral zone. Thanks you!!!
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- carboniferous
- upper carboniferous
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ID help. Crustacean, mollusk, or something else? Upper carboniferous.
Gramps posted a topic in Fossil ID
I have found several of these in an outcropping of shale and limestone in the Iola Formation in Northeastern Oklahoma (middle Pennsylvanian). The longest dimension is about 15 mm (≈ 5/8 inch). Some of the other specimens are slightly larger, but all have the same pattern of bumps. (I photographed this one because it shows the least wear.) I’m wondering it might be the carapace of a phyllocarid or some other crustacean. Alternatively, it might be a bivalve or other mollusk. Any help with ID would be appreciated. Focus and exposure were difficult, so there are several images. Best wishes.- 2 replies
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- phyllocarid
- crustacean
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Hi Everyone, I've been working through quite a bit of shale from the Stark member and have a specimen I would like your thoughts on. My brain sees a crustacean claw due to the shape, but I think its more likely that it's a fin. What do ya'll think I have here? Dimensions are 1 cm by 1 cm. My "holding the phone camera to my microscope lens" method isn't working so well, so here's a rough outline of the shape: And the counterpart from the split Thanks,
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- upper carboniferous
- kansas city
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The Namurian cyclothems in West Clare, Ireland originate in an environment of delta systems which deposited sediments in an offshore basin (Clare Basin) and are referred to as the Central Clare Group. There are five cyclothems comprising marine bands (conventionally considered to form the ‘base’ of each cyclothem) and upwards coarsening fine-grained and sandstone sediments. The five cyclothems are named (from oldest to youngest): Tullig, Kilkee, Doonlicky, Cyclothem IV, and Cyclothem V. The marine bands contain - among other fossils - index fossils in the form of ammonoids (goniatites). These index fossils are used to determine the stratigraphy of the cyclothems. Central Clare Group marine bands and goniatite index species (youngest at top) Cyclothem V top - R2c1 - Reticuloceras superbilingue alternatively Bilinguites superbilinguis (Bisat, 1924) Cyclothem V base - R2b - Reticuloceras wrighti alternatively Bilinguites metabilinguis Cyclothem IV base - R2 - Reticuloceras bilingue alternatively Bilinguites bilinguis (Salter, 1864) Doonlicky base - R1c - Reticuloceras reticulatum Kilkee base - R1b3 - Reticuloceras stubblefieldi alternatively Phillipsoceras stubblefieldi Tullig base - R1b2 - Reticuloceras nodosum My problem is the differentiation between these goniatite species in the field. Some of them look quite similar - to me - and in addition, they are preserved as very compressed, often crushed shells. At one location, they are firmly incorporated into concretions which appear to have dried out at some time, showing polygonal cracks filled with calcite; very handsome but even more difficult to identify. Under this topic, I have grouped images of goniatites by location and added information regarding the goniatite species recorded on the Geological Survey Ireland Spatial Resources website for each location. Any help with identification is greatly appreciated! So the first batch of images from Seafield beach, near Quilty village, County Clare, Ireland is in my collection 'ID of goniatites / ammonoids - Seafield'. The Geological Survey Ireland Spatial Resources website records Reticuloceras superbilingue, Reticuloceras bilingue and Reticuloceras stubblefieldi for this location. But which is which in the images?
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- goniatites
- upper carboniferous
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From the album: Plants
Annularia Sphenophylloides from the Upper Carboniferous of Spain.- 3 comments
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- annularia
- upper carboniferous
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