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Showing results for tags 'nemiana'.
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So I recently acquired this little Ediacaran fossil. The round convex blobs have been identified as Beltanelliformis/Nemiana, but I'm not so sure about the flat one in image 3. Is this just a flattened specimen of the same genus? Or is this something else (e.g. a holdfast? muscular structures?)? The small bump/dimple in the center, along with the circular(ish) rings are of interest. Location: Podolia, Ukraine
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Hello together, I just got a fossil that I am not sure what to make of. The species ID I got is Nemiana/Beltanelliformis, which I have no reason to doubt so far. https://en.wikipedia.org/wiki/Beltanelliformis What has me wondering is the preservation. Most pieces the seller had to offer seem to be imprints or remnants of sediment glued together by biofilms as one would expect for the species, like in the third pic. Containing mica interestingly. The piece in question appears covered in a shiny black layer that reminds me very much of what I once found in a glass bottle of coke that had melted in a campfire, turning its sugary content into coal. In case of the fossil it may be other dark minerals of course, but after reading about organically preserved specimens I dared hope that it may be the actual carbon. What do you think? Thanks J
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Cyclomedusa davidi Sprigg, 1947 together with Nemiana simplex Palij, 1976
oilshale posted a gallery image in Member Collections
From the album: Invertebrates
Cyclomedusa davidi Sprigg, 1947 together with Nemiana simplex Palij, 1976 Upper Ediacaran Mohylev formation Yampil beds Bernashivka Ukraine Diameter ~ 9cm / 4" -
Quotation Wikipedia: "Nemiana simplex has given taxonomists great trouble due to its simple nature. When the species was first discovered it was placed in incertae sedis, however since then, a combination of well-preserved specimens and new techniques that have allowed scientists to examine the creature's body structure, have given the creature anatomical links to jellyfish and was subsequently placed in with the other extinct coelenterates." Nemania simplex is one of the most commonly found Ediacaran organisms. Refewrences: Palij, V. M., 1976. Remains of soft-bodied and trace fossils from deposits of Upper Precambrian and Lower Cambrian (in Russian). Paleontology and Stratigraphy of Upper Precambrian and Lower Paleozoic of the South-West of Eastern-European Platform. Naukova dumka, Kiev: 63-76.
