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From the album: Fossils found with my bantams. Northamptonshire.
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Interesting rock with scale-like internal erosion
Pleuromya posted a gallery image in Member Collections
From the album: Fossils found with my bantams. Northamptonshire.
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I can't find any pictures of dino skull bone structure. Does anyone have any, or know where to find any cross sections, or pictures of skull fragments where you can see the internal structure? Preferably the forehead/top
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Please clarify for local discussion. Referencing the attached sketch: First is a coin simulating a fossil. If split at the red line, there would be 2 pieces of external mold. Correct ? or incorrect ? Second is a lens shape, like a saucer or moult of a pygidium. If split at the red line, there would be 2 pieces of external mold. Correct ? or incorrect ? Third is an egg or complete bivalve. If split at the red line, there would be 2 pieces of external mold and 1 internal mold. Correct ? or incorrect ? All 3 assume that the specimens have dissolved an left a void which if filled would be the cast. Correct ? or incorrect ? The local argument is that the pygidium moult example is 1 external mold (top) and 1 internal mold (bottom) because it is the "internal" side of the animal. I don't think that is correct. Just a local discussion needing clarification, thanks. ref: http://www.ucmp.berkeley.edu/paleo/fossilsarchive/casmol.html
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Hi folks, found this orthoceras this morning. Both pieces were relatively close to one another, (rarely happens) There is a strange inhabitant residing inside. Do you recognize it ? I'm experimenting with photos through a microscope. Hope they are clear enough. The second find today is another one I haven't seen yet. I assume it is a cephalapod but the sutures are very close together, unlike the others I've found here. They are only 0.5mm (0.02") apart. It is basically round and tapered like the others also. Thanks
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- cephalapod
- internal
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