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I've found a lot of petrified wood around town and over the summer I cut of slices out of a few. I don't have the ability to polish them, so I put on a coating of nail polish. I then decided to put them under a microscope. I don't get a lot of magnification, just about 45x. This piece has some nice coloration and pockets in it, but it's even more interesting when you zoom in. I can't tell exactly what these dots are. They only look like this in a few regions on this slice, in other places they're empty as you can see to the right. Here's a more representative view. Unfortunately this is a much magnification as I can get. This next piece is one I posted recently. You can see lines going vertically across the screen, and occasionally there are black dots between the lines. I have no idea what those are. It's probably time to brush up on my plant biology. The structures are more apparent in the lighter sections.
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I haven’t gotten it in the mail yet, but I recently purchased an American Optical 569 Stereo star zoom microscope on a boom arm. I’ve been very excited about this. I just realized, though, that it doesn’t come with a light source! I will be using it to prep fossils I find. These typically span from a couple of inches to about a foot, including the matrix. Where I live in Iowa, I find mostly brachiopods, corals, and some crinoids. So far, I’ve been prepping with brushes, dental pics, an electric engraver, and a Dremel rotary tool. I would really appreciate any suggestions for how to illuminate what I will be working on when I use my cool new scope. Thanks much.
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I have a serious question. As.I was taking pictures of a few of my fossils, I decided to zoom in on my rock. I became so intrigued By what I was I continues zooming in on alot of my small fossils. Does anyone else being their zoom to a max and just inspect a rock? It looked like little dinosaurs everywhere. My questions are does anyone else do this? And also what are these things that look like little dinosaurs when I zoom? It's like I can see how many crazy things. Any answers or suggestions would be great. I'll take the negative and positive. Should I stay away from zooming in or what?
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Throwing Shade When you look at beautiful fossil leaves, have you ever wondered what the forest was like? Was the leaf from a tall tree, hogging the sun at the top of the forest? Or did it grow in the understory, in the shadows of big trees above? Perhaps we can figure that out. Please join our next online meeting of the DPS at 7pm on Wednesday, October 14th, when we will hear how to “see the forest from the leaves”. Joe Milligan, PhD candidate at Baylor University, will speak on "Sycamores shine a light on ancient canopy structure”. Joe has a BS in Environmental Science from the University of Maryland Baltimore County, and an MA in Earth and Environmental Science from Wesleyan University. He is doing several research projects for his doctorate, including estimating the CO2 content of the ancient atmosphere from fossil leaves, which is supported by a scholarship from the DPS. In this work he studied living trees which were grown in different shade conditions, and determined how the leave shape, microstructure, and even the carbon isotope composition are effected. Sycamores are one of our most beautiful trees, and distinctive fossils, so it will be fun to learn how they might tell us about the structure of ancient forests. Wednesday, October 14th, will also be National Fossil Day! We will celebrate with two short talks on fossils that can be seen in our national parks. Tom Dill will give a short walking tour of giant spiral beaver burrows along the Daemonelix Trail in Agate Fossil Beds in Nebraska, and Estée Easley will talk about Florissant Fossil Beds in Colorado, and their virtual displays and online activities. So stay online after the main presentation to see more fossils. Please join our Zoom meeting by clicking on this link: https://zoom.us/j/92213920218?pwd=N0l4eXhtQW9lOU1uQVp5OGh3OUFWdz09 Or start the Zoom app and join the Meeting ID: 922 1392 0218, with the Passcode: 466780. Remember that you are on camera if your video feed is on, and that we can hear everything if you have your microphone on. Please be responsible about what you sending out to the world. If you move your mouse over the Zoom window, controls will appear where you can turn on and off your audio and video “feeds” to the meeting. During the presentations we will mute everyone’s audio, but if you come in late, be sure to mute yourself. You can submit questions for the speaker in the chat box, typing “QUESTION” to make them stand out. We will read them at the end in the order received, or unmute people to ask their questions.
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From the album: Marine reptiles and mammals
Close up of the stomach contents-
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