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#edmontosaurus — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #edmontosaurus, aggregated by home.social.

  1. Odkrycie, które zmienia podręczniki. Niezwykłe „mumie” dinozaurów z Wyoming

    W świecie paleontologii zdarzają się odkrycia, które każą nam przerysować to, jak wyobrażaliśmy sobie prehistoryczny świat.

    Jak donosi Jacek Krywko z ArsTechnica, ponowne zbadanie słynnego stanowiska w Wyoming przyniosło dwie nowe, „zmumifikowane” skamieniałości Edmontozaura. Są tak doskonale zachowane, że ujawniły szokujące detale – w tym fakt, że te wielkie gady miały… kopyta.

    Oryginalną „mumię AMNH” odkryto w 1908 roku. Był to szkielet Edmontozaura (dinozaura kaczodziobego) pokryty odciskami łusek, co dawało pierwsze pojęcie o jego wyglądzie. Ponad 100 lat później zespół paleontologów pod kierownictwem prof. Paula Sereno z University of Chicago wrócił w to samo miejsce i dokonał cudu.

    Jak powstały „mumie” z Wyoming?

    Odkryto dwie kolejne „mumie” Edmontozaura, których tkanki miękkie zostały zachowane w postaci submilimetrowej warstwy gliny. Prof. Sereno uważa, że ten obszar, zwany „strefą mumii”, był regularnie nawiedzany przez powodzie. Tonące dinozaury były szybko pokrywane mułem i gliną, która przylegała do biofilmu na rozkładającej się skórze, tworząc idealny „odlew” lub „maskę”.

    To proces zwany „glinianym szablonowaniem” (clay templating), znany do tej pory z badań bezkręgowców głębinowych, ale nikt nie sądził, że może zadziałać na wielkim dinozaurze.

    Dinozaur z kopytami i skórą jaszczurki

    Analiza tych glinianych masek za pomocą nowoczesnych technik (skany CT, fotogrametria) dała obraz, który wywraca dotychczasowe teorie. Największy szok? Okazało się, że Edmontozaur miał kopyta. Przednie kończyny miały pojedyncze, centralne kopyta, bardzo podobne do końskich. Z kolei tylne kończyny, dźwigające większość ciężaru, miały trzy oddzielne kopyta (po jednym na palec) oraz mięsistą piętę, co przypomina budowę stopy nosorożca. Jest to pierwszy potwierdzony gad z kopytami.

    Badaczom udało się również określić detale dotyczące skóry. Zwierzę wielkości słonia miało skórę pokrytą niewiarygodnie małymi łuskami (rzędu 1-4 mm każda), podobnymi do tych u współczesnych jaszczurek. Tyle że współczesne jaszczurki są znacznie, znacznie mniejsze.

    Odkryto również, że dinozaur miał zarówno mięsisty grzebień (jak sądzono na początku), który w pewnym momencie przechodził w rząd kolców (jak odkryto później), podobnych do tych u kameleona.

    W kolejce czekają T. rex i Triceratops

    To nie koniec rewelacji ze „strefy mumii” w Wyoming. Prof. Sereno, biolog  z University of Chicago, potwierdził, że jego zespół znalazł tam również zmumifikowanego T. rexa i Triceratopsa.

    Pierwsze oględziny są równie fascynujące. T. rex został zachowany w pozie tak naturalnej, że sugeruje to, iż mógł zostać pogrzebany żywcem. Z kolei mumia Triceratopsa ma łuski 10 razy większe niż Edmontozaur i grubą, pozbawioną zmarszczek skórę, co sugeruje zupełnie inną fizjologię, mimo że żyły w tym samym miejscu i czasie.

    #arstechnica #dinozaurZKopytami #edmontosaurus #mumieDinozaurow #news #odkrycieNaukowe #paleontologia #paulSereno #tRex #triceratops

  2. In my new YouTube #video, I tell the #hypothetical story of a #Histiostomatidae #mite that lived its #lifehistory in the #dung heap of the #dinosaur #Edmontosaurus #annectens during the Late #Cretaceous. It developed #fungivorously within the dung and, when conditions deteriorated, was #transported by #flies to a new habitat (phoresis). All images and footage created with #AI assistance, except photos of free-living mites.
    © #StefanFWirth 2025

    Video
    youtu.be/gzv-TZmU5G4?si=zrTLfr

    Pics
    © S.F. Wirth

  3. In my new YouTube #video, I tell the #hypothetical story of a #Histiostomatidae #mite that lived its #lifehistory in the #dung heap of the #dinosaur #Edmontosaurus #annectens during the Late #Cretaceous. It developed #fungivorously within the dung and, when conditions deteriorated, was #transported by #flies to a new habitat (phoresis). All images and footage created with #AI assistance, except photos of free-living mites.
    © #StefanFWirth 2025

    Video
    youtu.be/gzv-TZmU5G4?si=zrTLfr

    Pics
    © S.F. Wirth

  4. In my new YouTube #video, I tell the #hypothetical story of a #Histiostomatidae #mite that lived its #lifehistory in the #dung heap of the #dinosaur #Edmontosaurus #annectens during the Late #Cretaceous. It developed #fungivorously within the dung and, when conditions deteriorated, was #transported by #flies to a new habitat (phoresis). All images and footage created with #AI assistance, except photos of free-living mites.
    © #StefanFWirth 2025

    Video
    youtu.be/gzv-TZmU5G4?si=zrTLfr

    Pics
    © S.F. Wirth

  5. In my new YouTube #video, I tell the #hypothetical story of a #Histiostomatidae #mite that lived its #lifehistory in the #dung heap of the #dinosaur #Edmontosaurus #annectens during the Late #Cretaceous. It developed #fungivorously within the dung and, when conditions deteriorated, was #transported by #flies to a new habitat (phoresis). All images and footage created with #AI assistance, except photos of free-living mites.
    © #StefanFWirth 2025

    Video
    youtu.be/gzv-TZmU5G4?si=zrTLfr

    Pics
    © S.F. Wirth

  6. In my new YouTube #video, I tell the #hypothetical story of a #Histiostomatidae #mite that lived its #lifehistory in the #dung heap of the #dinosaur #Edmontosaurus #annectens during the Late #Cretaceous. It developed #fungivorously within the dung and, when conditions deteriorated, was #transported by #flies to a new habitat (phoresis). All images and footage created with #AI assistance, except photos of free-living mites.
    © #StefanFWirth 2025

    Video
    youtu.be/gzv-TZmU5G4?si=zrTLfr

    Pics
    © S.F. Wirth

  7. "New research reveals [...] that the skin found on newly discovered duck-billed dinosaur “mummies” [...] aren’t fossilized flesh at all but clay molds welded by microbes as the creatures decayed."

    scientificamerican.com/article

    #Dinosaurs #Fossils #Mummies #Edmontosaurus

  8. #Edmontosaurus #annectens was a #duckbilled #dinosaur (#Hadrosauridae) and ate mostly #coniferous #diet. Hadrosaurids preferred #quadruped walks. P. C. Sereno et al. (2025) found that "#mummy" #fossils of the #species formed due to the carcass being covered by a soft #sedimentlayer impressed with tissue details before decomposition. Found details: a fleshy head- and trunk-ridge, a hip/tail spikerow and #hoof-like feet.
    ©#StefanFWirth 2025

    Ref
    doi.org/10.1126/science.adw3536

    Pics
    ©S.F.Wirth,AI assisted

  9. #Edmontosaurus #annectens was a #duckbilled #dinosaur (#Hadrosauridae) and ate mostly #coniferous #diet. Hadrosaurids preferred #quadruped walks. P. C. Sereno et al. (2025) found that "#mummy" #fossils of the #species formed due to the carcass being covered by a soft #sedimentlayer impressed with tissue details before decomposition. Found details: a fleshy head- and trunk-ridge, a hip/tail spikerow and #hoof-like feet.
    ©#StefanFWirth 2025

    Ref
    doi.org/10.1126/science.adw3536

    Pics
    ©S.F.Wirth,AI assisted

  10. #Edmontosaurus #annectens was a #duckbilled #dinosaur (#Hadrosauridae) and ate mostly #coniferous #diet. Hadrosaurids preferred #quadruped walks. P. C. Sereno et al. (2025) found that "#mummy" #fossils of the #species formed due to the carcass being covered by a soft #sedimentlayer impressed with tissue details before decomposition. Found details: a fleshy head- and trunk-ridge, a hip/tail spikerow and #hoof-like feet.
    ©#StefanFWirth 2025

    Ref
    doi.org/10.1126/science.adw3536

    Pics
    ©S.F.Wirth,AI assisted

  11. #Edmontosaurus #annectens was a #duckbilled #dinosaur (#Hadrosauridae) and ate mostly #coniferous #diet. Hadrosaurids preferred #quadruped walks. P. C. Sereno et al. (2025) found that "#mummy" #fossils of the #species formed due to the carcass being covered by a soft #sedimentlayer impressed with tissue details before decomposition. Found details: a fleshy head- and trunk-ridge, a hip/tail spikerow and #hoof-like feet.
    ©#StefanFWirth 2025

    Ref
    doi.org/10.1126/science.adw3536

    Pics
    ©S.F.Wirth,AI assisted

  12. #Edmontosaurus #annectens was a #duckbilled #dinosaur (#Hadrosauridae) and ate mostly #coniferous #diet. Hadrosaurids preferred #quadruped walks. P. C. Sereno et al. (2025) found that "#mummy" #fossils of the #species formed due to the carcass being covered by a soft #sedimentlayer impressed with tissue details before decomposition. Found details: a fleshy head- and trunk-ridge, a hip/tail spikerow and #hoof-like feet.
    ©#StefanFWirth 2025

    Ref
    doi.org/10.1126/science.adw3536

    Pics
    ©S.F.Wirth,AI assisted

  13. My 25 years of palaeoart chronology...

    A 2023 illustration of a Tyrannosaurus rex taking a bite out of an Edmontosaurus (there is fossil evidence of this, & the hadrosaur survived), from DINOSAUR BEHAVIOUR, by Prof Michael Benton (published by Princeton University Press).

    #Art #Painting #PaleoArt #PalaeoArt #SciArt #SciComm #DigitalArt #Illustration #Dinosaurs #Reptiles #Palaeontology #Paleontology #Trex #Tyrannosaurus #TyrannosaurusRex #Edmontosaurus #JurassicPark #JurassicWorld #WildlifeArt

  14. This weeks #Lego #FossilFriday is #Edmontosaurus

    The history of Edmontosaurus is Complex.

    In 1891 John Bell Hatcher recovered a partial skull-roof and skeleton.

    In 1882, Othniel Charles Marsh named that fossil Claosaurus annectens.

    In 1902 John Bell Hatcher tried to synonymize Cionodon, Diclonius, Hadrosaurus, Ornithotarsus, Pteropelyx, Thespesius, Claorhynchus, and Polyonax (the last two being fragmentary ceratopsians), as Trachodon.

    In 1917, Lawrence Lambe named Edmontosaurus,

  15. Edmontosaurus (Haolonggood)
    Written by Gwangi

    Edmontosaurus has been a staple in dinosaur toy lines since the very beginning of dinosaur toy production with Marx in the 1950’s. It’s a quintessential dinosaur, right up there with Triceratops, T. rex, and Stegosaurus, even if it was historically regarded as nothing more than theropod fodder. Although I have a few Edmontosaurus sitting around in my own collection, I was sorely in need […]

    Read more... https://dinotoyblog.com/edmontosaurus-haolonggood/

    #Edmontosaurus #Haolonggood

  16. 🇫🇷 A... B... C... D... E... Petit alphabet des dinosaures... Dans le but de découvrir de nouvelles espèces et de sortir de ma zone de confort !

    🇬🇧 A... B... C... D... E... Little dinosaurs alphabet... I want to discover new animals and get out of my confort zone!

    #paleoart #dinosaur #paleo #allosaurus #brachiosaurus #concavenator #dilophosaurus #edmontosaurus #practise #art

  17. You know what the world needs? More photos of #Edmontosaurus regalis skulls from NOT the lateral view. Any angle other than directly from the side would help. I'd love to show this 3D model I'm working on from different angles but... I don't even know what it's supposed to look like!

    #paleoart #fossils #paleontology #dinosaurs

  18. New on the Dinosaur Toy Blog, a detailed look at the 2023 Edmontosaurus by Schleich: dinotoyblog.com/edmontosaurus-

    "Schleich’s approach to dinosaurs tends to favor imitating monsterized pop culture depictions, rather than scientifically-backed life replicas... do any of the new dinosaurs raise the bar?"

    #DinoToyBlog #dinosaurs #toys #Schleich #Edmontosaurus #2023 #review

  19. Painted this Edmontodaurus skull from a photo I took at the natural history museum in Oxford. I think I might actually upload this to a t-shirt frinting website and see if it would sell as a design?
    #Dinosaur #Gouache #Art #Edmontosaurus #skull #Painting

  20. May: The last #Edmontosaurus. This idea came to me after reading Riley Black’s The Last Days of the Dinosaurs. The idea is that during the shockwaves caused by the meteorite’s impact, an Edmontosaurus egg got buried and survived the ensuing global firestorm underground. After hatching, she emerges into a devastated world. #myArt #paleoart #kpgextinction #dinosaur

  21. Incredible dinosaur ‘mummy’ reveals a surprisingly hoof-like foot nationalgeographic.com/magazin #dinosaurs by Riley Black

    Paper by Stephanie Drumheller et al.: journals.plos.org/plosone/arti

    Despite being known to science for more than a century, the duck-billed dinosaur #Edmontosaurus continues to surprise. It had the reptilian equivalent of a hoof—its middle fingers connected and covered in a large nail.

  22. Sorry this one is getting out a little late. I should be back on schedule this week. Remember you can always read all of these comics at www.epicduelscomic.com

    #art #comics #webcomic #indycomics #timetraveler #timemachine #tyrannosaurus #trex #triceratops #edmontosaurus #alamosaurus #laramidia

  23. Sorry this one is getting out a little late. I should be back on schedule this week. Remember you can always read all of these comics at www.epicduelscomic.com

    #art #comics #webcomic #indycomics #timetraveler #timemachine #tyrannosaurus #trex #triceratops #edmontosaurus #alamosaurus #laramidia

  24. Sorry this one is getting out a little late. I should be back on schedule this week. Remember you can always read all of these comics at www.epicduelscomic.com

    #art #comics #webcomic #indycomics #timetraveler #timemachine #tyrannosaurus #trex #triceratops #edmontosaurus #alamosaurus #laramidia