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Showing results for tags 'dinosaurs'.
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Hey everyone! Last August I took a trip to Chicago and, of course, went to The Field Museum. It's quite impressive and absolutely worth visiting. All exhibitions I was able to see were awesome. My favorite part was the dinosaur room, though the most famous skeleton is in the main hall. Let's start with some pictures of Sue - the most complete T-Rexskeleton ever found. The skull mounted to the bod, isn't the actual skull found with the skeleton. The original skull is exhibited on the first floor and wasn't add to the body, because it was kinda squeezed (you can read all about it at the museum). There's also another bone section of Sue displayed on first floor, right next to the fossil lab, where you see paleontologists working (it's like staring at animals at the zoo, but very interesting haha). Scientists still try to figure out, how these bones match to Sue's skeleton. Close to the displayed shown above, is the entrence to the dinosaur room. While making your way to the hall, you're passing several exhibits, arranged in a timeline. To me themost interesting exhibt was the Dimetrodon skeleton. My first ever dinosaur book, contained a picture of it, so it wasawesome to see it in person after so many years. Once you entered the room, you see impressive exhibts of several herbivores. To your left you find a Stegosaurus: In the middle of the room is a huge Apatosaurus: On the opposite you have Triceratops: Sorry, forgot the name of this boy, eating a Edmontosaurus: Next to the shown exhibit, you can see a Parasaurolophus: AND there's also a juvenile Edmontosaurus:
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Excavating Dinosaurs at Redding Farms Near Rudyard, Montana
Oxytropidoceras posted a topic in Fossil News
Paleontologists unearth more dinosaur fossils north of Rudyard By: Josh Meny, MTN News, KRTV, Great Falls, Montana, Aug. 19, 2017 http://www.krtv.com/story/36172339/paleontologists-unearth-more-dinosaur-fossils-north-of-rudyard Redding Farms has unearthed dinosaur fossils for decades By: Josh Meny, MTN News, KXLH, Helena, Montana, Aug. 19, 2017 http://www.kxlh.com/story/36170618/redding-farms-has-unearthed-dinosaur-fossils-for-decades Down on the dinosaur farm By Martin J. Kidston Independent Record, August 6, 2005 http://helenair.com/news/down-on-the-dinosaur-farm/article_0d3f3f53-a8ca-5a9f-8596-a97319bdaddb.html Yours, Paul H. -
Found in mineral springs by the Mississippi
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Help i need to find out did any other herbivorous dinosaurs besides Rebbachisaurus live in the Kem Kem beds in morocco
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My father and I are planning on taking a trip fossil hunting this summer, we can't seem to find anywhere that really seems worth driving to. (Everything around us is basically Devonian.) We were looking for something different: Mosasaur, Arthropods (Cambrian preferred), Holocene, etc. My dad loves actual bones and I love arthropods from Cambrian. We came to a consensus and are looking for anything marine in the Mid-West. But we will take any suggestions into consideration! (We are new-ish to fossil hunting and are willing to go anywhere and do anything.
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Does anyone know where I could find a detailed Cedar Mountain Formation of Utah Map?
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Hi from New York City My name is David, and I am a 51 year old physician originally from Rochester, NY. Since I was little, I wanted to be a doctor, except for about two years following a Rochester Museum and Science Center Field trip to the railroad cut in East Bethany NY, when I got hooked on fossils. I remember wanting to be a paleontologist for about two years in there back then (i.e. What did I answer to the question: "What do you want to be when you grow up?" From 8-10, I always answered "a Paleontologist"). But you know, you never completely lose that 8 year old kid's passions when you grow up. So recently I took my 15 year old and 9 year old daughters fossil collecting, including a couple of creeks on the western shore of Canandaigua Lake south of Rochester, NY, and then we went to Penn-Dixie on Sunday May 28th for dig with the experts. We brought about 50-60 lbs of material back from Penn-Dixie, and I have been working my way through it, cleaning up the better trilobites in the evenings after work. So I'm kind of hooked again.
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I've been reading a few papers on Sauropods and the topic of wear facets got me thinking. I own 30 plus Rebbachisaurus teeth and only two of them have labial wear facets. Every other tooth with a wear facet has a lingual wear facet. That doesn't really make any sense to me. For most sauropods with tooth to tooth contact, the upper teeth will have a lingual wear facet and the lower teeth will have labial. It could be that I just happen to own mostly upper teeth but I don't think so. Most every Rebbachisaurus tooth you see has a lingual wear facet. Any thoughts on that.
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Does anyone know of any good places in New Jersey where you can legally look for, dig, and take dinosaur fossils/footprints?
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Hello to all fellow fossil enthusiasts, great to meet you! I am a long time reader and now would like to join this great community. As a kid I have been collecting fossils (ammonites & belemnites) in the Jura Mountains of Switzerland. Additionally, I very recently started to collect dinosaur fossils which I buy from fellow fossil hunters/preparators/collectors. It's kind of an expensive hobby and I get a lot of eye-rolling from my wife. However, the fossils put a big smile on my face every time I see them. :-) Thank you for having me here. Felix
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Hi everyone, I hope someone can help me. I am doing a school project ( fossil report) and struggling to find what i am looking for. I have never looked for fossils before and believe i may have missed what i was looking for today. I went out for a nice hike at horseshoe canyon in alberta. it was amazing, however i could not find any fossils. ( at least i think i didnt after looking at some pictures of this forum i may have and just missed them) I am a complete amateur. i did find a map on here for horseshoe canyon but still did not have much luck. i was hoping some one can help point me in the right direction. is there an area in the canyon that is best to look at? but most importantly what am i looking for? How do i know what is a fossil and what is well just rock. I feel silly asking but i am so intrigued and planning on making another trip out on friday. Thanks for any help you can provide.
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Found this in my rock garden. . Please help identify
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Volcanic eruptions triggered dawn of the dinosaurs (Huge pulses of volcanic activity are likely to have played a key role in triggering the end Triassic mass extinction, which set the scene for the rise and age of the dinosaurs, new Oxford University research has found.) http://www.heritagedaily.com/2017/06/volcanic-eruptions-triggered-dawn-dinosaurs/115652 https://www.sciencedaily.com/releases/2017/06/170619151530.htm Dinosaurs got an evolutionary assist from huge volcanic eruptions by Mary Beth Griggs Popular Science http://www.popsci.com/volcanic-eruptions-dinosaur-evolution The paper is: Lawrence M. E. Percival, Micha Ruhl, Stephen P. Hesselbo, Hugh C. Jenkyns, Tamsin A. Mather, and essica H. Whiteside. Mercury evidence for pulsed volcanism during the end-Triassic mass extinction. PNAS, June 2017 DOI: 10.1073/pnas.1705378114 http://www.pnas.org/content/early/2017/06/13/1705378114 Yours, Paul H.
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Like did Ammonite shoot ink back then? please tell me.
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Opinion: NJ’s ‘marl’ pits yield dinosaur wonders Michele S. Byers, Daily Record, April 29, 2017 http://www.dailyrecord.com/story/opinion/letters/2017/04/29/new-jersey-fossils-dinosaurs-marl/101025078/ Yours, Paul H.
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Stratigraphy of the Late Cretaceous North America
Troodon posted a topic in General Fossil Discussion
Placement of terrestrial formations in the late cretaceous of North America as been constantly evolving and in October 2016 Denver Fowler a Paleontologist at the Museum of the Rockies published a very extensive paper on the subject and updated most units. This is very important when it comes to understanding dinosaur evolution and aids in describing species. This paper is in the process of going through peer review so is subject to change. Fowler DW. (2016) A new correlation of the Cretaceous formations of the Western Interior of the United States, I: Santonian-Maastrichtian formations and dinosaur biostratigraphy. PeerJ Preprints 4:e2554v1https://doi.org/10.7287/peerj.preprints.2554v1 The paper is pretty technical but all of the data is found in this excel file (supplemental information) which is a massive high-resolution stratigraphic chart for all of the formations from the late cretaceous of North America. It's nice to see it all laid out and a great reference source. https://doi.org/10.7287/peerj.preprints.2554v1/supp-1 To make it easy I've broken the chart apart so you can easily see most important dinosaur formations Texas The biggest change came with our understanding the Aguja and Javelina Formations of Texas part of the Tornillo group. The study indicated that the Aguja Formation deposits are only Campanian in age and that the Javelina Formation does not extend into the end of the Cretaceous. Very important when trying to describe species in those formations. Sellers have been comparing the Aguja to the Judith River in Montana well there is a correlation but its deposits are much younger that JR. Eastern Montana, N. Dakota, S. Dakota and Wyoming What I found interesting is that the Hell Creek is much older in Montana than in the adjacent states. The other interesting observation that can been easily be seen on these charts is that the how short a time frame the deposits of the Hell Creek/Lance formation are compared to the other major dinosaur formations. Central Montana Two Medicine and Judith River Formations are the two key formations in this locality Utah and New Mexico Utah depicted on the left and NM on the right Head North to Canada Alberta and Saskatchewan
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The family tree was announced back in February but the paper was just published. https://www.theguardian.com/science/2017/apr/19/how-we-revealed-a-new-family-tree-for-dinosaurs?CMP=share_btn_tw Abstract: For 130 years, dinosaurs have been divided into two distinct clades—Ornithischia and Saurischia. Here we present a hypothesis for the phylogenetic relationships of the major dinosaurian groups that challenges the current consensus concerning early dinosaur evolution and highlights problematic aspects of current cladistic definitions. Our study has found a sister-group relationship between Ornithischia and Theropoda (united in the new clade Ornithoscelida), with Sauropodomorpha and Herrerasauridae (as the redefined Saurischia) forming its monophyletic outgroup. This new tree topology requires redefinition and rediagnosis of Dinosauria and the subsidiary dinosaurian clades. In addition, it forces re-evaluations of early dinosaur cladogenesis and character evolution, suggests that hypercarnivory was acquired independently in herrerasaurids and theropods, and offers an explanation for many of the anatomical features previously regarded as notable convergences between theropods and early ornithischians Paper it's paywalls publication http://www.nature.com/nature/journal/v543/n7646/abs/nature21700.html
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Hello! Everyone has probably heard someone say here and there that they have found a dinosaur egg!! Although most eggs are very rare to find and you are very lucky if you do have the pleasure of finding one. I found this along with lots of other fossils in the same area. Just curious to know if you all think it is real or just a rock that is a look alike. This was found in Missouri in a small town of Fairdealing.
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A new hypothesis of dinosaur relationships and early dinosaur evolution
haventbaptized posted a topic in Fossil News
This new analysis of dinosaurs and their near relatives, published today in the journal Nature, concludes that the ornithischians need to be grouped with the theropods, to the exclusion of the sauropodomorphs. It has long been known that birds (with their obviously ‘bird-like’ hips) evolved from theropod dinosaurs (with their lizard-like hips). However, the re-grouping of dinosaurs proposed in this study shows that both ornithischians AND theropods had the potential to evolve a bird-like hip arrangement- they just did so at different times in their history. http://www.nature.com/nature/journal/v543/n7646/full/nature21700.html http://www.nature.com/news/dinosaur-family-tree-poised-for-colossal-shake-up-1.21681 http://www.cam.ac.uk/research/news/new-study-shakes-the-roots-of-the-dinosaur-family-tree http://www.sciencemag.org/news/2017/03/t-rex-gets-new-home-shakeup-dino-family-tree -
A paleontologist at the Canadian Museum of Nature is countering decades of studies that assert that some dinosaurs can be identified as male or female based on the shapes and sizes of their bones. A study was conducted on non-avian dinosaurs like Tyrannosaurus rex, Allosaurus fragilis, Stegoceras and Stegosaurus to determine if sexual dimorphism existed. The study included tests and concluded that no evidence for sexual dimorphism was found in any of the examined taxa, contrary to conventional wisdom. This is not to say that dinosaurs were not sexually dimorphic, only that the available evidence precludes its detection. So what are we to about the gender names given to T rex's and most other mounted dinosaurs Is Sue a He? Do we need gender neutral names http://nature.ca/en/about-us/museum-news/news/press-releases/male-female-canadian-museum-nature-scientist-challenges-evi Pretty technical paper recognizing_sexual_dimorphism_in_the_fossil_record_lessons_from_nonavian_dinosaurs.pdf
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I was looking at the latest news and this popped up which I thought was very cool that something like this exists "A group of paleontologists from the University of Queensland and James Cook University has documented the most diverse assemblage of dinosaur tracks in the world on the north-western coast of Western Australia." http://www.sci-news.com/paleontology/worlds-most-diverse-collection-dinosaur-footprints-04740.html The paper is part of SVP memoir series #16. Not sure if one can purchase this journal, it's pretty nice and if this interest you a hard bound copy is the way to go. Here are a few highlights Of the tracks examined, 150 could be identied and are assignable to a least eleven and possibly as many as 21 different track types: ve different types of theropod tracks, at least six types of sauropod tracks, four types of ornithopod tracks, and six types of thyreophoran tracks. Eleven of these track types can formally be assigned or compared to existing or new ichnotaxa, whereas the remaining ten represent morphotypes that, although distinct, are currently too poorly represented to confidently assign to existing or new ichnotaxa. Unfortunately the trackways are in a tidal area and will eventually disappear Here are some of the tracks found with descriptions
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Major shake-up suggests dinosaurs may have 'UK origin'
DE&i posted a topic in General Fossil Discussion
Interesting new theroy. Major shake-up suggests dinosaurs may have 'UK origin' http://www.bbc.co.uk/news/science-environment-39305750- 2 replies
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What is your favorite extinct creature and why?
Pterosaur posted a topic in General Fossil Discussion
Hey everyone! I want to know your favorite extinct animal and why. Theropods, ornithischians, artiodactyls, cetaceans, carnivores, plesiosaurs, pterosaurs, gastropods!!! Megatherium, Tyrannosaurus Rex, Anzu Wyliei, Leedsichthys, Stegosaurus, Megalodon, Glyptodon, Moonshot, Woodstock, Watergate, Punk Rock! (just kidding) ANYWAYS, there are no limits here. Even if its coral. Get specific! Do you have a fossil from your favorite creature? If not, is it even possible to acquire one? Have any interesting discoveries been made about your creature as of late? Just looking to learn and start some interesting discussions. GO! ------ Cheers! Lauren -
http://news.nationalgeographic.com/2017/02/anchiornis-bird-like-dinosaur-feathers-lasers-soft-tissue-science.html
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Hi everyone! So I've recently gotten into the Early Cretaceous coastal environment of what was the extended Gulf of Mexico in what's now Texas after finding out about the numerous dinosaur trackways in my area of the state. I've been combing various databases, and I've already visited the trackway up at the South San Gabriel River twice (A very beautiful group of tracks I might add). This morning, I came across something that surprised me. On the database site https://paleobiodb.org/#/ ( a very useful and interesting site that shows various fossil finds on a map), I found that there were supposedly tracks from some sort of theropod (probably the large sort found around a lot of Texas that have been attributed to Acrocanthosaurus atokensis if I was to put my money on one) were found as close to home as Jonestown. Would anyone happen to know any more about this set of tracks? Unfortunately, there is nothing about exact location on the site like GPs coordinates, so all I have to go off of is the specimen number it provides and a name "TMM 43007, Sandy Creek". Thanks for any help anyone can provide!
