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Showing results for tags 'triassic'.
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The Prosanto Fm. is a (Furrer et al. 1985) " Small lagoonal basin [pool] in the intertidal platform of the Vallatscha Fm. with anoxic bottom waters. Agitated surface waters deposit tempestite layers as well as mud, which forms very regular drapes." Taxonomy from Bürgin 2004. Diagnosis (Bürgin 2004, p, 242): "A fusiform species of the genus tEosemionotus with a broad gill-cover, being one and a half times deeper than wide. Supratemporal commissure not continuous. Fringing fulcra on dorsal and anal fin minute. Twenty-seven or 28 vertical scale rows and 12-14 single scales in the row in front of dorsal fin. Flank scales moderately deepened and with a smooth posterior margin." Line drawing from Bürgin 2004, p. 246: Identified by oilshale using Bürgin 2004. References: T. Buergin et al. (1991) The Prosanto Formation - a middle Triassic fossil Lagerstatte of the Silvretta Nappe (Graubünden Canton, Switzerland) with a rich ichthyofauna. Eclogae Geologicae Helvetiae 84(3):921-990. Bürgin, T. (2004) Eosemionotus ceresiensis sp. nov., a new semionotiform fish (Actinopterygii, Halecostomi) from the Middle Triassic of Monte San Giorgio (Southern Switzerland). In: Mesozoic Fishes 3 - Systematics, Paleoenvironments and Biodiversity, G. Arratia & A. Tintori (eds.): pp. 239-251, 10 figs. ©2004 by Verlag Dr. Friedrich Pfeil, München Germany - ISBN 3-89967-053—8. López-Arbarello, A., Bürgin, T., Furrer, H., and Stockar, R. (2019) Taxonomy and phylogeny of Eosemionotus Stolley, 1920 (Neopterygii: Ginglymodi) from the Middle Triassic of Europe. Palaeontologia Electronica 22.1.10A 1-64. https://doi.org/ 10.26879/904 palaeo-electronica.org/content/2019/2383-systematics-of-eosemionotus
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References: SCHWEITZER, C., FELDMANN, R.,HU, S.,HUANG, J., ZHOU, C., ZHANG, Q.,WEN, W., Xie, T.(2014): PENAEOID DECAPODA (DENDROBRANCHIATA) FROM THE LUOPING BIOTA (MIDDLE TRIASSIC) OF CHINA: SYSTEMATICS AND TAPHONOMIC FRAMEWORK. Journal of Paleontology, 88(3), 2014, p. 457–474. Quote: "Although the lobsters were interpreted as having relatively durable cuticle, the shrimp discussed herein are characterized by having very thin cuticle that is readily deformed and oriented in a variety of positions. As a result, the description and interpretation of the morphology of the shrimp is, of necessity, a composite of several specimens; however, fine detail of many parts of the skeletal anatomy is exquisite."
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Hi guys, last week I started studying so I don't have much time at the moment and because of that I can't be very active here. Nevertheless I could go hunting last weekend (related to my eighteenth birthday (so why I am still a youth member?? )). I was in a quarry near Stuttgart where you can find fossils from the Triassic. Looking for bones and teeth in the "Bonebed" there is quite strenuous but it makes always fun! Especially if you find something good And my best find was this lungfish tooth (Ceratodus): Never found something like that before so I am quite happy with it! It's about 2.5 cm long and I prepped it with my air pen and with my new sandblasting machine! The prep work took about 1 hour. I can't really estimate how rare such a find is but maybe @Pemphix can say more! Thanks for viewing
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Need tips for recognizing a fake keichousaurus at a fossil fair
ziggycardon posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hi, next month I am going to Paleotime, a fossil fair in Belgium and I am hoping to find a Keichousaurus fossil. Now I know their are lots of fakes out there (although after doing some reading on this forum most of them I came to the understanding most of them aren’t entirely faked, just enhanced, painted and composites) And I am going to be honest, I don’t really care that much if the Keichou is a little bit enhanced of painted. But I hope to find a specimen that is at least 75 % or more authentic. So I was hoping if you guys could give me some tips as to what I should look for when I examine a specimen I hope to buy, cause since I will buy it at the fair, I won’t be able to post picture here during the process. I know that these are some of the thing I already have to look for to enhance the chance of getting an authentic one · Missing bones · Broken bones · Strange or akward poses · Imperfections (fake always try to be as beautiful and perfect as possible) · Calcite cracks running through the skeleton · Looking for detailing in the skull like teeth and obvious skull fragments · Looking for paint with a magnifying glass · Taking a picture and doing a negative to see paint mischief · Looking for 3D relief on the specimen These are the things I know of the look for, but does anyone else have some tips for me on how to recognize it’s a genuine of faked piece. I will also be taking my LED Mini microscope 60x for on the phone with me for closer examination. Thanks in advance!- 12 replies
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Hi! I have some question marks about some of my fossils that I bought early as a child. I have a tooth that was labelled as coelophysis, I know its not a coelophysis, everything about it is wrong for being that, I cant remember where it was found , but if someone has an idea what it possibly/maybe can be its good enough for me. The other fossil is a dinosaur Bone fragment which according to what i can remember is from hell creek formation and was labelled as triceratops. Im mostly curious to know why it looks like it does because it doesnt look like a normal fragment to me, it also has some unusal textures within a convex circle. Sorry for the mediocre photos, My mobile camera has the Specs of a potato. If you need to see more or better photos, just let me know and I will use another camera
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Interesting article in the NYT (New York Times) today on a fossil lizard called Megachirella. You may need subscription to view. However, they usually allow a certain number of free viewings per month. You might include this in yours. Cheers. Megachirella article
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L.S., Thought it would be fun to share this "chance encounter" I had at a mineral show. The photograph below shows a slab of petrified wood from the Triassic of the Isalo II Fm. of Madagascar. When material from this locality is offered for sale (which happens often and in large quantities), it is usually labelled as "Araucarioxylon" or simply as "petrified wood" (where the latter may actually be better). While most of the wood indeed has an "Araucaria-like" anatomy (see Rössler et al. 2014 for a recent discussion on the nomenclature), I recently was lucky enough to "find" something else. While the left-most photograph may not directly show it, the anatomy of this particular slab is quite different from the common Araucaria-like specimens. I tried to clarify the anatomy by contouring the main structures seen, which hopefully makes visible how this wood consists of multiple rings of perimedular bundles and wedge-shaped structures, showing both centripetal and centrifugal xylem (inward and outward growing regions, per as provisionally indicated by the blue and red arrows). This curious growth form (by modern wood standards, at least) is characteristic for the stems of some groups of Mesozoic seed ferns, such as those from the Umkomasiales order. The best-known genus with this type of anatomy is probably Rhexoxylon (see Archangelsky and Brett 1961), but there are more similar genera, making it difficult to arrive at a more specific identification.
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I'm thinking of creating an online 3 D version of my website, but not sure if the image will display on different setups.... I've included a link to an example of a piece of petrified wood (a piece I purchased). I have done some experiments in the field with my setup, I think 3 D in-situ photos would be possible. I've attache a 2 D picture as well. Any feedback appreciated. http://www.safossils.com/petrifiedwood.html Thanks, Walt
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Made an incredible discovery at home tonight when I noticed tiny baby dinosaur tracks about only 5.1mm long on a ripple slab I had found. I've never seen baby footprints so small before, so I'm amazed. No wonder I didn't notice them for nearly two weeks after I had found them this month! Since there seems to be a partial adult on the edge it makes me wonder if this dinosaur was walking with its new born baby.
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Would this be a Coelophysis tooth form Bull Canyon Formation of San Miguel County, NM ?
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Hi, a month back I bought these two plant fossils at a shop. But unfortunatly the guy at the store forgot to put the information card of them in the box. :/ What I can remember reading when I bought them was that they were from the Triassic era and that they were found in the Bruchsal area in Germany. But that's unfortunatly all I could remember, I don't know their exact age or species. I tried to research the exact age of the fossils found in that area or what species can be found there, but unfortunatly in my search I did not find any anwsers, only one guy with pictures of the same fossil species from the same area and age, but unfortunatly I did not get a reply back from the guy. So I was hoping one of you guys here could help me to ID the fossil. Thanks in advance! photo hosting
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From the album: Vertebrates
Ecrinesomus dixoni Woodward, 1910 Early Triassic Dienerian Iraro Madagascar Length 16cm -
800-plus Fossils Reveal How Bugs Rose From The ‘Great Dying’ By Roni Dengler, D-Breif, September 5, 2018 http://blogs.discovermagazine.com/d-brief/2018/09/05/800-plus-insect-fossils-reveal-the-rise-of-bugs/#.W5Fy-y2ZOQ4 Chinese fossils reveal middle-late Triassic insect radiation September 5, 2018, Chinese Academy of Sciences https://phys.org/news/2018-09-chinese-fossils-reveal-middle-late-triassic.html The abstract of the paper is at: Daran Zheng, Su-Chin Chang, He Wang, Yan Fang, Jun Wang, Chongqing Feng, and others, 2018, Middle-Late Triassic insect radiation revealed by diverse fossils and isotopic ages from China. Science Advances 05 Sep 2018: Vol. 4, no. 9, eaat1380 DOI: 10.1126/sciadv.aat1380 http://advances.sciencemag.org/content/4/9/eaat1380 Yours, Paul H.
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From the album: Sharks and fish
Hybodus Houtienensis shark spine Permian to Cretaceous shark (impressive!!!!!) beautiful serration teeth down the back. -
https://www.devonlive.com/news/devon-news/devon-fossil-predates-dinosaurs-links-1955629#
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I have recently found a triassic red bed site in Virginia. It was in the hot and dry environment of that time. 200+ mya. A lot of rocks have been bull dozed into a pile by idiots. Red beds rocks were the realm of Triassic reptiles. Wish me luck.
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https://phys.org/news/2018-08-geologists-skull-wetlugasaurus.html
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200-million year old Pterosaur 'built for flying' August 13, 2018 by Marlowe Hood, PhysOrg https://phys.org/news/2018-08-million-year-pterosaur-built.html Rare Desert Pterosaur Fossil Discovered in Utah The rare Triassic fossil is the most complete early pterosaur ever found, and gives new insight into the evolution of the first flying vertebrates By Jason Daley, Smithsonian Magazine, Aug. 14, 2018 https://www.smithsonianmag.com/smart-news/rare-desert-pterosaur-fossil-discovered-utah-180969995/ Oldest pterodactyl fossil discovered in Utah desert Doyle Rice, USA TODAY, Aug. 13, 2018 https://www.usatoday.com/story/tech/science/2018/08/13/fossil-oldest-pterodactyl-discovered-utah-desert/977979002/ Brooks B. Britt et al. Caelestiventus hanseni gen. et sp. nov. extends the desert-dwelling pterosaur record back 65 million years, Nature Ecology & Evolution (2018). DOI: 10.1038/s41559-018-0627 https://www.nature.com/articles/s41559-018-0627-y Yours, Paul H.
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Indian Vertebrate Paleontology
The Amateur Paleontologist posted a topic in General Fossil Discussion
I noticed that in the wide world of vertebrate paleontology, not a lot of attention is given to India, despite some rather good Mesozoic (notably Triassic) vertebrate sites. I thought it would be nice to share this with the other TFF members, to promote a bit the advances in Indian vertebrate paleo: https://www.researchgate.net/project/Mesozoic-Microvertebrates Some of the papers have the full text available. What do you people think? -Christian- 6 replies
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From the album: Triassic vertebrate fossils
A 1 cm long Acrodus tooth from a triassic bonebed in a quarry in southern Germany (Baden-Württemberg). Those teeth are very common there!-
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From the album: Triassic vertebrate fossils
A 1 cm long Nothosaur tooth from a triassic Bonebed from a quarry in southern Germany (Baden-Württemberg).-
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From the album: Triassic vertebrate fossils
A partial Nothosaur rib with a length of 11 cm from a triassic bonebed in a quarry in southern Germany (Baden-Württemberg). This was a present of a friend but I prepped it a bit more, Another picture:-
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Consolidation of My Jurassic Park Collection that has been posted. Can also provide a good reference source Jurassic: Allosaurus Morrison Formation: Sauropods Morrison Formation Cretaceous: Cloverly Formation & Deinonychus Two Medicine Formation Judith River Formation Hell Creek/Lance Tyrannosaurs Hell Creek/Lance: Edmontosaurus Hell Creek: Oviraptorids Hell Creek: Pachycephalosaurid Domes Hell Creek: Alvarezsaurids This one more how to ID Hell Creek/Lance: Ankylosaurid Hell Creek/Lance: Troodontids Hell Creek/Lance: Ornithomimids Hell Creek/Lance: Large Bodied Ceratopsian Hell Creek: Leptoceratops Hell Creek/Lance: Birds, Pterosaur & Unknown Hell Creek: Injured or Diseased Bones United States - Texas/ Other States Hell Creek: Turtle Skulls, Mammal & more MicroTeeth - Texas Bones - Kem Kem & Canada Europe Morocco - Kem Kem Beds Morocco - Kem Kem Claws Uzbekistan Thailand
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Wondering if this could be a claw from a Drepanosaurus. What do you guys think?
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Hello all, I just picked up this pretty vert and am not quite sure about the ID. The seller advertised it as Coelophysis, but it doesn't seem to be a match. It's from Bull Canyon formation, Quay County, New Mexico (Upper Triassic). It measures 2 1/2". The seller provided good pictures, so I've attached some of those. I can provide more and even take some of my own if needed! Thanks, and hopefully we can figure out an ID on this one!
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