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Showing results for tags 'radiolarians'.
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Unknown Microfossil from Pennsylvanian aged Excello Shale in thin section
Samurai posted a topic in Fossil ID
Hello! I was making some thin sections of some material from the Excello shale and found a very large and bizarre structure. Sorry in advance it was too big for my microscope camera to really capture it all, but here is the specimen in question its most likely coated in apatite/phosphate? along with small radiolarian/sponge spicules surrounding it I sent a photo to my professor and he said it could be something new but he would have to see it in person (he is an expert in Radiolarian microfossils) I wanted to post it here and see if anyone had any ideas to throw out. Here it is under 4x power (it is still a little bit of a "thick section" rather than thin section but I plan to grind it down at another time) I don't think it is a radiolarian (unless it is a ginormous one) as the largest I have found from the Excello was about 1000 microns Here is the largest one I can confirm is a Radiolarian (Entactinaria sp.?): Bonus Rad that shows possible apatite/phosphate coating in more detail (old photo) Let me know if you guys have any suggestions or questions let me know and Ill try to aid in any way I can.-
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- black shale
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Hello everyone, I have not been on here in several years. Lately I have been running into some fossils out in the field and that got me thinking about the best forum on the internet. So I'm back, looking forward to contributing. My last find, Radiolarian chert, meta-morphed into a Meta-chert or Jasper.
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- chert
- meta-chert
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Tiny Fossils Record Big Shifts in Ocean Currents Minerals stored in microscopic fossils hint at the subtle ways ocean currents link far-flung food webs. by K. N. Smith, Hakai Magazine, January 3, 2018 https://www..com/news/tiny-fossils-record-big-shifts-in-ocean-currents/ Yours, Paul H.
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- geochemistry
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