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Showing results for tags 'pseudo fossil'.
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Firstly, apologies for not using an international scale. The pen in the first image is 146mm long. I found this pair of rocks in a pile of mostly shale at the foot of some sea cliffs near Hole in the Wall, South Africa. Based on geological maps, the rocks around here are from the Ecca group (+-290 - 270 Ma) and were formed in marine conditions. I've found a number of trace fossils in the area, mostly small horizontal burrows, but also a couple of beds of diplichnites type trackways. The closest thing to the images shown I've seen are areas of parallel marks on rocks with a similar brownish surface layer, like what you'd get if you scraped a serrated knife across a dirty surface. In this case, I was able to rub off the brownish surface layer with some water, so I assume the marks are made by some animal gnawing at a thin organic film. In this case, even though the marks are on a brownish surface that might be organic (I haven't tried rubbing it off), they were clearly formed while the two halves were joined together, so couldn't have been scraped away by an animal. Any idea how they could have formed?
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
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- fossils
- iron county
- (and 7 more)
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From the album: MY SE MISSOURI FINDS
-
- fossils
- iron county
- (and 7 more)
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While walking back to the car I walked over this interesting specimen. I do not know if it is a pseudo fossil most likely, feeding trace of a star fish with lots of arms most unlikely. This comes from the toolebuc formation in central Queensland and is cretaceous. The item in question is 60 mm across. Any comments appreciated. Mike
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Here is a small specimen my wife collected in Ordovician material that is very fossiliferous. I can't decide if it is a fossil or pseudo fossil. Any help would be appreciated.
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Just would like to know that are all pyrite sand dollars pseudo-fossils? Or there are actually sand dollar fossils that can become pyritized and they are confused with marcasite crystal or pyrite sun due to their similarity? If that's the case, how would you be able to tell the difference from the two?