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Showing results for tags 'dinosaurs'.
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Could proteins found in dinosaur fossils come from microbes?
Oxytropidoceras posted a topic in Fossil News
Could proteins found in dinosaur fossils come from microbes? A new study continues the debate over whether or not scientists have discovered fragments of actual dino proteins by Laura Howes, Chemical & Engineering News https://cen.acs.org/analytical-chemistry/art-&-artifacts/proteins-found-dinosaur-fossils-come-from-microbes/97/i27 Evan T Saitta, Renxing Liang, Maggie CY Lau, Caleb M Brown, Nicholas R Longrich, Thomas G Kaye, Ben J Novak, Steven L Salzberg, and Mark A Norell. 2019. Cretaceous dinosaur bone contains recent organic material and provides an environment conducive to microbial communities. eLife https://elifesciences.org/articles/46205 Raphael Eisenhofer and Alan Cooper. 2019. Fossils: A new home for microbes. eLife https://elifesciences.org/articles/48493 An opposing open access paper is: Schweitzer, M.H., Schroeter, E.R., Cleland, T.P. and Zheng, W., 2019. Paleoproteomics of Mesozoic dinosaurs and other Mesozoic fossils. Proteomics, p.1800251. https://onlinelibrary.wiley.com/doi/abs/10.1002/pmic.201800251 Yours, Paul H.- 1 reply
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Hello everyone, I'm going to be in Alberta soon and I was hoping to do some fossil hunting. I read on a previous post to this forum that dinosaur fossils can be found in the Horseshoe Valley, but I was wondering if anyone has any other suggestions near Drumheller, or if they could provide any tips for this locale. I'm aware of the laws regarding fossil collection as well, all specimens will be catch and release. I'm just trying to fulfill a dream I've had since watching Jurassic Park 20 years ago haha. Any tips would be greatly appreciated.
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I recently came across the young earth theory (the theory that earth is 10.000 years old and dinosaurs coexisted with humans and traveled with Noah and his ark) and of course i thought it was unfeasible but one common argument they keep having is why are we finding soft tissues, proteins and other biochemicals in fossils like triceratops, t-rex and other dinosaur bones of course that doesn't mean DNA BUT they shouldn't have been preserved because such biochemicals don't get preserved after so much time. Another one is that some old fossils are still close to the surface when they should be buried really deep. So what are your thoughts on these arguments, in my opinion this theory is ridiculous but i'd love to learn the answers. Thanks (PS sorry for asking that many questions these days its just that im new to the forum and have lots of questions)
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Going really basic here being new on the fossil game i wanted to know how a fossil gets created because i have read that the bone gets replaced by rock or sediments and they take its original form but if that's the case then we are not holding teeth, we are holding rocks in the form of teeth when holding a fossilized tooth for example. I don't really know so if someone could please explain to me if the fossil is actual tooth like it was back then or it becomes rock and the general process it would be much appreciated.
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So having a small fossil collection i have thought of the possibility of studying the fossils especially the dinosaur teeth but the problem is im not a scientist so i don't know how to study them so if someone could tell me if cheap fossils like these could be studied and how it would be largely appreciated. (Collection includes 2 spinosaurus teeth, a meg tooth, 2 mosasaur teeth, mammoth hair, carcharodontosaurus tooth) Thanks.
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So after following nizaar ibrahim's study in 2014 I learned that spinosaurus walked on four legs and it spend a lot of time in water being a good swimmer. But recently I saw that some new studies have been published and then some others and I have lost track so if someone could please inform me about the latest discoveries and tell me if spinosaurus was a good swimmer and if he walked on four it would be much appreciated.
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It's been almost four years since I last went out into the field to hunt for fossils. Been so busy these past few years but finally a one week window arrived this May, and I once again entered the ancient desert home of the dinosaurs. As advised by the admins, I now post this trip with humbleness and excitement after the VFOTM has ended (very nice Ptychodus tooth, btw!) As per previous posts and trips, I will have to leave out landscape photos and location details of the fossil sites, as these sites in China can unfortunately be prone to blackmarket fossil poaching and other negative operations/awareness. I have been joining paleontological expeditions with professional and national teams since 2012 to hunt for dinosaurs, but this time the location is relatively new, and many species have yet to be described (only one eusauropod mamenchisaur dinosaur is in the works of being published at the moment). This new locality is dated to the Middle Jurassic period (Bajocian stage, 170 million years ago), and was mostly a delta-river system that fed into fast and deep rivers. Therapod fossils, Sauropod fossils (mainly) and Thyreophoran fossils are known to have been found since the area's initial prospect 4 years ago. Without further due, I will begin the report (sit back, it might take a day or two to finish, getting late here now!)
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Because i live in Greece i wanted to know if any fossils of large extinct animals (like dinosaurs or big mammals) have been found in Greece because when i search it i get no valid results so could you help me?
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Hi. This fall I will be teaching a paleontology class for 5th and 6th graders. We will meet once a week for 55 minutes. My plan is to teach up front for about ten minutes and then for the remainder of the class to be hands on activities. I have come up with some ideas, but would love some feedback on them and any other ideas that you all might have. The first session will be an introduction to paleontology, possibly including fieldwork methods, fossil prep, ichnology and trace fossils, adaptations, cladistics, plate tectonics, etc, while the second session will be more focused on the actual organisms that we find in the fossil record and how they changed through time. The second session will build a fossil kit as the session progresses to take home at the end. Here are the topics I have come up with so far: 1. What makes a dinosaur a dinosaur, addressing the dinosaur-bird connection 2. Cladistics- using either coins or candy or both 3. Fossils and sedimentary layers, layer cake stratigraphy (not sure about using food, depends on allergies) or could use colored sand and plastic cups with animal shaped beads to be the fossils 4. Dinosaurs and speed activity, have students learn to calculate their own speed over a given distance and apply that to dinosaur foot impressions 5. Plate tectonics and fossils, have the kids reconstruct the earth 220 million years ago based on fossils found on the different puzzle pieces that the land masses have been broken up into 6. Dinosaur teeth, learning the difference between meat-eaters and plant-eaters and discuss the size of dino teeth 7. Chocolate chip cookie excavation exercise, to teach how difficult fossils can be to extract from matrix and to prepare for study 8. Activity using a pant tray covered in dirt, rocks, and some sand. Sprinkle glitter (glitter= dead animal bones) over the dirt. Then gentle rain water out of a paper cup over your pretend hillside and watch the dirt absorb the water. There is a greater chance the glitter bones will be make it into the fossil record vs. the desert. Put plastic wrap over your hillside to simulate the desert. Sprinkle on your glitter and rain over it...glitter washes away into the arroyo, bones are separated, lost, broken, etc.... --> trying to develop into a way of showing how fossils end up getting in to the fossil record more easily in a forest environment vs. a desert environment. Still only just the beginning of an idea.
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Fossils in Alberta's Horeshoe and Horsethief Canyons?
TheGuy185 posted a topic in Fossil Hunting Trips
Hi all, I'm planning a trip to Alberta this summer and am hoping to dig for dinosaur fossils somewhere. Our trip will take us to drumheller for a day, which puts us in close proximity to Horseshoe and Horsethief Canyons, both of which I've heard contain fossils. What I'm wondering is, where in the canyons can fossils be found? And is one of the canyons better for fossil hunting than the other? If anyone knows of any other fossil sites near drumheller that are open to the public, that would also be great. Thanks! -
Discovered thirty years ago in Thailand, two new carnivorous dinosaurs https://m.phys.org/news/2019-05-thai-dinosaur-cousin-rex.html
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Dig continues after crew finds dinosaur fossils at Highlands Ranch construction site, Kieran Nicholson, Denver post, May 22, 2019 https://www.denverpost.com/2019/05/21/highlands-ranch-fossils-found-construction/ Construction crews dig up dinosaur fossils in Highlands Ranch Robert Garrison, Denver Channel, May 20, 2019 https://www.thedenverchannel.com/news/local-news/construction-crews-dig-up-dinosaur-fossils-in-highlands-ranch Yours, Paul H.
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What do you guys think about nanotyrannus? I thought it is a juvie tyrannosaurus but it's hands were bigger
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Antarctic Dinosaurs in Los Angeles Natural History Museum
Oxytropidoceras posted a topic in Fossil News
LA Scientist Nathan Smith Went To Antarctica And Brought Back Dinosaurs https://laist.com/2019/04/02/these_scientists_went_to_antarctica_and_brought_back_dinosaurs_heres_how_to_see_them.php Yours, Paul H.-
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I hope this isn't too out of context. These are a few of many collages I made a few years ago; cut out with X-acto knife and glued with glue sticks. These are long sold, that included dinosaur imagery. I hope you like them! Obviously I need to make more dinosaur related collages, my friends went nuts over them! Such a pain to make though.
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Hey everybody, My team writes math textbooks and we want to include dinosaurs in them. We're trying to find a document that states the amount of bones (approx.) in different kinds of dinosaurs. I would really appreciate your help! Thanks, Gonzalo from Uruguay
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Hillsboro paleontologist finds new dinosaur in West Texas
Oxytropidoceras posted a topic in Fossil News
Fossil of new dinosaur discovered in Texas by Hillsboro paleontologist, KWTX, April 22, 2019 https://www.kwtx.com/content/news/Fossil-of-new-dinosaur-discovered-in-Texas-by-Hillsboro-paleontologist--508882331.html New Dinosaur Discovered in Texas, Now What Should We Call It, Stryker, The 1063 Buzz, April 22, 2019 https://1063thebuzz.com/new-dinosaur-discovered-in-texas-now-what-should-we-call-it/ Yours, Paul H.- 1 reply
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Hey friends, Hope you're all well. I recently went to New York for the first time and throughly enjoyed what the city had to offer, however one of the stand out days was definitely a trip to the American Museum of Natural History. I won't bombard you with thousands of picture but I will post a few of my favourites Also a question, annoyingly I was on limited time and wasn't able to make the last slot of the "Meet T-Rex: The Ultimate Predator", has anybody done the tour and is it worth doing? I was gutted I missed it and would like to hear what others thought of it. I'm sure most of you know the I.Ds but i'll list a few of them just incase. So here's a few pics from my journey This specimen is AMNH 5027 and it was excavated in 1908 by Barnum Brown in Montana. Interestingly enough this specimen also provided the first complete skull of Tyrannosaurus rex. Not an alien, a pano that went a little wrong, it's hard to fit these guys in.
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Some pics from this year:
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Stan Winston School of Character Art !! - Jurassic Park meets the Wild West - Part 02
Brett Breakin' Rocks posted a topic in Members' News & Diversions
These are additional images from a post the Stan Winston School of Character Art shared recently on Facebook - Part 02 I just love the world-building in these sets of images, the dynamic qualities of the characters and their dinosaur mounts. I'd hate to get one of them angry .. or go without food .. no telling what the varmit might get around to doing to you while you sleep !! (The rest of the story) PS. I'd give them all my money to see the movie ... a-la .... if Firefly and Once Upon a Time in the West had a baby .. vibe. Jurassic Park meets the Wild West. Artist: Shaun Michael Keehan Source: instagram.com/shaunmichaelkeenan
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I have found this theropod tooth in my collection. I bought it as a Carcharodontosaurus tooth, but I'm not sure about the Identification. I would like to hear your opinion on the ID. The tooth is from the Kem Kem Formation (Morocco) and is 51mm (2") in lenght. Serrations on the distal carina can be recognized. Can you help me? Kind regards from Germany!
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Collectors talk about the small arms of T. rex, but have you seen the arms of Carnotaurus? The entire arm was vestigial and likely useless. Right to left, weird humeri, radius-ulna, and metacarpals-phalanges. Image and tech info by João Vasco Leite Holotype skull of Utah's first big tyrannosaurid, holotype of Tetratophoneus as displayed at Brigham Young University. vs U of U's prepped skull from Utah's most perfectly complete tyrannosaurid skeleton; both Kaiparowits Fm Provided by Jim Kirkland Did you know that Ceratosaurus a theropod had osteoderms? These lumpy bumps may not look like much, but they are super cool! You are looking at osteoderms that lined the back of the horn-snouted Jurassic theropod Ceratosaurus. Info and photo by Scott Persons Did you know that theropod anatomy makes it pretty much impossible to turn hands palm down Make sure you have volume turned up. Growth series of Allosaurus femora from the Cleveland-Lloyd Dinosaur Quarry, Photo by Oliver Demuth Here are the bones of Hadrosaurus foulkii on display at the Philadelphia Academy of Natural Sciences This was the first partially-coseemplete dinosaur skeleton ever found, and the first dinosaur skeleton ever mounted for display- by Benjamin Waterhouse Hawkins.. Nice place to visit if youre in Philadelphia. Everyone talks about the spines "sail" on Spinosaurus check out the display of Amargasaurus a sauropod from the Museum in Patagonia. Cool cervical neural spines. Photo by Serjoscha Evers Here are teeth from Dicraeosaurus teeth a diplodocoid sauropod dinosaur from Tanzania. The one on the far right is erupted and worn down whereas the other three are unworn replacement teeth. Photo from Amy Campbell
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