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Found 5 results

  1. Mutant Crayfish Clone is Taking Over Europe

    Below is an example of how weird and rapid evolution can be. I have to wonder how often this has happened in the past and how invisible it would beto a paleontologist with nothing but hard parts as fossils and the lack of temporal resolution in the geologic record. This Mutant Crayfish Clones Itself, and It’s Taking Over Europe Carl Zimmer. New York Times, Feb. 2018 https://www.nytimes.com/2018/02/05/science/mutant-crayfish-clones-europe.html Decoding the mutant, all-female, self-cloning crayfish Kevin Bersett, University of Illinois, September 12, 2018 https://news.illinoisstate.edu/2018/09/decoding-the-mutant-all-female-self-cloning-crayfish The Genetic Mystery Of The Invasive Crayfish Clones, Science Friday https://www.sciencefriday.com/segments/the-genetic-mystery-of-the-invasive-crayfish-clones/ the paper is: Gutekunst, J., Andriantsoa, R., Falckenhayn, C., Hanna, K., Stein, W., Rasamy, J. and Lyko, F., 2018. Clonal genome evolution and rapid invasive spread of the marbled crayfish. Nature ecology & evolution, 2(3), p.567. https://forum.breastcarenetwork.com/wp-content/uploads/2018/02/Gutekunst-et-al.pdf https://www.nature.com/articles/s41559-018-0467-9 Maybe it is time for a crayfish broil. Yours, Paul H.
  2. Is this what it looks like? ..... a crayfish? found in gravel drive west of Houston texas gravel from Brazos River. and from the looks of the shape of the stone there could be more lurking inside....sorry about photo quality will take more with good camera later am having a problem getting the photos to upload from camera.
  3. As I was putting together labels with photos containing microscopic images of inclusions in coprolites, I came across something that I may have misidentified as a fish tail and vertebrae in a very small coprolite. After looking at it again, the tail looks more like a shrimp or crawfish tail than that of a fish. What I thought were fish vertebrae, look more like crustacean arm joints/elements. Can anyone please confirm this for me? Thanks a bunch! Formation: Oxford Clay (Jurassic - Callovian) Location: Orton Pit, near Peterborough, Cambridgeshire, England
  4. This past weekend my wife and I, a few friends and a few other fossil hunting fanatics braved the sweltering heat and humidity that is eastern NC summer. Forecast was for temps in the low - mid 90s F, high humidity and 50-70% chance of showers and thunderstorms. This was our 3rd attempt at accessing a Cretaceous deposit along one of the rivers after 2 unsuccessful attempts earlier this spring due to high water. With many of the eastern NC rivers running higher than normal so far this summer, we wanted to take advantage of a lull on this particular river, since there is no guarantee a tropical storm/system won't flood us out for an extended time period at any point from now through late fall. Even though we knew we were going to be hot and sweaty, harassed by mosquitoes, biting flies & gnats as well as the possible snake or 2, we had to take what low water we could get. We were all drenched in sweat (and sand / mud) the entire 2 days we hunted. Coming along on its inaugural fossil hunting trip was a new photo scale cube custom made by Ray/ @aerogrower for Mrs. SA2, in pink. She was quite surprised when a box addressed to her showed up a few days before the trip and it contained her very own cube, in pink. When I explained that its a 1 of a kind, she was even more excited. Even more importantly for me, Mrs. SA2's new, pink cube proved to have "the magic" that so many TFF members have come to expect and enjoy in Ray's cubes. Here are a few photos of it beside the massive, almost complete Deinosuchus rugosus vertebrae I found on Sunday morning. These photos were taken right after it was found and given a preliminary rinsing off. Note how nice the cube looks with pink paint. Mrs. SA2 was not impressed with my muddy finger prints on her new cube and promptly cleaned it off before the last photo. It is by far the most complete and largest Deinosuchus vert in our collection. Once I finish cleaning it and the other goodies we found, I will post some more photos. Quite a few teeth and verts of Deinosuchus and other crocodile species were found by the group as well as the normal massive amount of Squalicorax, Scapanohrynchus and Carcharias teeth. Numerous Cretaceous fish teeth and even a few Hadrosaur teeth and 1 theropod tooth were also found over the weekend. What we didn't expect when we made the trip, was for the wildlife to be so determined to keep the fossils away from us. Here is a photo of a big crayfish holding onto a sharks tooth. Determined little thing so we traded him a clean getaway for his tooth. One of our group even snapped this photo along the river bank while she was scanning for fossils. Of course, its all fun and games until you slip on the sloping, wet clay and fall face first at the snake you are attempting to photograph. (YES, that really happened.) More to come......
  5. Crayfish fossil?

    Found in Guernsey, Wyoming area. Shake rock. About 1 inch long. If you notice, in the rock within the fossil has small line imprints. Assuming a crayfish, but is incomplete. Also on the same chunk of rock, a small (not even a centimeter) fossil that appears to have rings. Possible shell? Rock has tiny fragments of same red fossil scattered on it.
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