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Showing results for tags 'anomalocaridid'.
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Hi, I have this mystery piece of what appears to be anomalocarid appendage of sorts. The problem is I did not receive any information with it and it came out of an old collection from Maine, Usa. I'm not to sure what else it could be from the appearance but I am also very uncertain of the exact species. The piece of a very laminated sparkly shale If I had to guess it could've came from either Burgess Shale, Utah, or Nevada but I not sure what locality it could be from so if anyone if familiar with these shales and can tell from the preservation it would be a huge help, thank you and looking forward to seeing peoples opinions, and if anyone can recommend an expert to show that would also help.
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When faced with a radiodont appendage fossil; How does one effectively determine which slab contains the "part" or "counterpart" ? For reference, here's the holotype Pseudoangustidontus appendage. The first pic, Figure A, is apparently the positive(?) "part" of the fossil. Whilst the second pic, Figure C, is apparently the negative(?) "counterpart". Like it's easy to tell the difference between an impression/cast, or the actual fossilised remains for hard-bodied specimens like shells, exoskeletons and bone. But for some soft-bodied organisms, it's especially difficult when both slabs seem to preserve both the impressions and the fossilised remains of the organism, as in the case with the Pseudoangustidontus holotype. I've also heard that concavity of the matrix usually helps in identification; but thin and soft-bodied specimens often just leaves a planar imprint, so judging by relief might not be too reliable either. Any thoughts on this matter?
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- preservation
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From the album: Invertebrates and plants(& misc.)
Different lighting to highlight fossil differently-
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From the album: Invertebrates and plants(& misc.)
Both of a single anomalocaris' appendages. Possible anomalocaris goo? A speculation I think would be very cool, that the splotchy splatters around appendages could, however likely or unlikely, be anomalocaris "filling" or fragments, since it appears the whole animal was present at the beginning, and maybe included in fossilization, immediately below the edge of this piece, since the 2 appendages are in articulated position.-
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From the album: Invertebrates and plants(& misc.)
Another smaller anomalocaris appendage. Possibly different species than the 1st. *more info coming-
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From the album: Invertebrates and plants(& misc.)
Different lighting to give another view-
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From the album: Invertebrates and plants(& misc.)
Relatively large anomalocaris appendage *more info to follow-
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Does anyone have any fossils of, or with anomalocaris BODIES? I'm interested in seeing what they look like. I did searches for them and they all look so random, without any features except for the overlapping ends. Even the beautiful full-animal fossils have bodies like that. Did they always fossilize so unimpressively?
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From the album: Anomalocaris and friends.
I have identified this Wheeler Shale fossil as Caryosyntrips sp. (The Burgess species are serratus, but this is much younger and a different location so is most likely a new species). It was thought to be Anomalocaris sp. I have sent this fossil to Dr Allison Daley of Oxford for study. The Caryosyntrips has only ever been found at the older Burgess Shale.-
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