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Serious, experienced replies, please! This 0.5 cm long object is attached to a broken coprolite from the Eocene/Oligocene of NW Nebraska. Trying hard to figure it out. Wrong twexture for a tooth and it doesn't look like a seed, either. I have a guess, but right now a guess is all I have. Any coprolite specialists out there? I know the pictures could be better, but I don't have a microscope out here in the field.
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Well, not oldest but earliest. Parasite attached to brachiopods https://www.livescience.com/cambrian-parasites.html
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Analysis of DNA finds bed bugs have been around longer than beds https://news.google.com/articles/CBMiX2h0dHBzOi8vd3d3LnNjaWVuY2VhbGVydC5jb20vZGlub3NhdXJzLXdlcmUtc3RpbGwtd2Fsa2luZy10aGUtZWFydGgtd2hlbi1iZWQtYnVncy1maXJzdC1ldm9sdmVk0gFjaHR0cHM6Ly93d3cuc2NpZW5jZWFsZXJ0LmNvbS9kaW5vc2F1cnMtd2VyZS1zdGlsbC13YWxraW5nLXRoZS1lYXJ0aC13aGVuLWJlZC1idWdzLWZpcnN0LWV2b2x2ZWQvYW1w?hl=en-US&gl=US&ceid=US%3Aen
- 4 replies
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- bed bugs
- dna analysis
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58f3557d843a6_2017Amber032BMarchDipteraNematoceraandpassenger.jpg
Morten Øen posted a gallery image in Member Collections
From the album: Amber Inclusions
Baltic Amber Inclusion, with paracite or an act of phoresy.© Morten Øen
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- mite
- nematocera
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This coprolite is from a marine creature that swam in the Jurassic seas that once covered this parts of England. The dark inclusions that can be seen on the surface are Onychites (cephalopod hooks). In April 2016, the University of Minnesota X-ray Computed Tomography Lab scanned the specimen using a X5000 high resolution microCT system with a twin head 225 kV x-ray source and a Dexela area detector (3073 x 3889 pixels). Many of the images shown here are of individual 3D elements/features within the coprolite that were separated/isolated using Blob3D. The taxonomic classification given is for the inclusions, not the coprolite. Aside from the hooks, it is hard to definitively identify the inclusions without damage to the coprolite. The following is a list of inclusions: 241 hooks of various sizes that are at least 75% intact. 200+ plate-like fragments of various sizes (likely similar to the surface nacre). 19 ellipsoidal structures, possibly forams or parasite eggs. 2 unidentified long, straight conical structures joined at wide end (A) 1 long rod-like structure with a bulbous end (B) 1 unidentified mass that looks like it was the attachment point for 5 rod-like structures (C) 1 1ong cylindrical (rod) structure that tapers in the center. The center density is much lower than the outer shell (D) 1 irregular structure that looks I originally thought might be an ink sack or buccal mass, but the size is wrong. Experta think it is more likely foraminifera (E) 1 irregular structure, possibly a statolith (F) Acknowledgements: Thank you to Neale Monks and Christian Klug for providing input.
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- cambridgeshire
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