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Next time someone asks why study fossils, show them this. If they still don't understand, then just walk away slowly shaking your head. Studies of 360 million year old spores indicates that loss of the ozone layer and increased UV Radiation May explain the end Devonian extinction event. This ozone loss came about because warming led to higher levels of naturally occurring ozone depleting chemicals. This has direct implications for our current global extinction event. Oh, and there is a shark fossil too. https://phys.org/news/2020-05-erosion-ozone-layer-responsible-mass.html
REW01 posted a topic in Fossil LiteratureI have some pollen grains, spores(?), and other non-pollen palynomorphs as well, which I would like to identify that I photographed from a number of slides. However, I have no eye for these things yet (if only my university offered palynology courses!) so I am in need of references to start reading and hopefully use to identify some stuff now and in the future. I know that it's a pretty specialized area, but any input could be helpful as references accessible to people who don't yet know how to identify these things seem to be few and far between. I have access to Paleopalynology by Alfred Traverse (2007) through my university. I was given Fossil Fungi by Thomas N. Taylor, Michael Krings, and Edith Taylor (2014) as a gift from a family member. It's a lovely book, and excellent reference for fungi. I have found little on pollen and other terrestrial microfossils aside from Traverse and Taylor that seems useful. Marine micro/nanofossils get a lot more attention, apparently. While I am a student with a good working knowledge, I still need stuff that's clear and not too technical, as I am mostly learning this on my own. Anyone have suggestions for other material I could make use of (both modern pollen/palynomorphs and fossils)?
I was going through some of my photo files today and ran across some photos of palynomorphs that I extracted from clay underlying a T. rex skeleton in the Hell Creek of South Dakota several years ago. I recovered many plant macrofossils as well. My favorite palynomorph recovered is this Wodehousia spinata, characteristic of Late-Cretaceous and early Paleogene time (sorry the photos aren't the best): Here's a trilete pteridophyte spore: Here are some of the plant macrofossils. Metasequoia: External mold /cast of the cone of Metasequoia: Unidentified leaf cf. Marmarthia
Hello, This is my first post of this forum and I would like to show you some of my unidentified macro plant spores and vertebrate remains found in residue from fallen bits of plant debris bed picked up at Yaverland IOW, photos were taken under AmScope USB microscope, hope you like them. Still to experiment with the Toupview stacking software, watch this space. The Albaneretontid jaw holds nine teeth, this is the one I hope to get my stacking software working on. I have thrown in a close up of a termite coprolite apparently they have not changed in shape (hexagonal) for 75 million years. These are so abundant in the plant debris bed residue you end up ignoring them after a while. The rest I have not identified yet and are actually mega spores I believe. Also I found a tiny insect wing on the surface of some Bembridge limestone and a section of reed from a different piece. This is why the Isle of Wight is such a special place for me.