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amnhnyc · 3 days

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It's time for Fossil Friday! Meet Cryptocleidus oxoniensis, a short-necked plesiosaur. Plesiosaurs were large marine reptiles that lived from the late Triassic to the end of the Cretaceous. The plesiosaurs had extensive modifications to the shoulder and pelvic girdles: these elements form large, flat sheets of bone, presumably for the attachment of swimming muscles. Cryptocleidus' trunk was very rigid and short, and the short tail could only function as a rudder, leaving the limbs as its main organ of propulsion.

Photos: © AMNH

Image 1: Cryptocleidus on display in the Museum.

Image 2: Photographic negative of the fossilized remains of Cryptocleidus, circa 1910.

#science #amnh #museum #fossil #nature #natural history #animals #paleontology #plesiosaur #cretaceous #triassic #cool animals #ancient animals #fossil friday

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aberrantologist · 2 months

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Dinocephalosaurus, a strange, viviparous reptile from the Triassic, gives live birth in the shallows.

#art #paleoart #paleontology #digital art #paleoblr #prehistoric #reptile #triassic

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the-bonclave · 1 year

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If you've been following paleo news lately, then you know ichthyosaurs have been screwing with evolution again.

#paleoart #paleo meme #ichthyosaur #triassic #permian #palentology #my art #mini comic #my comics

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wobblyworks · 1 year

Video

A Coelophysis pair enjoying the early morning hours

#paleoart #paleontology #dinosaur #dinosaurs #art #3d animation #3d art #animation #natural history #coelophysis #triassic #science

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knuppitalism-with-ue · 8 months

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I had the pleasure to work on a bunch of little ammonite portraits some time ago for a new paper that was just published.

Before you ask: no we don't know if their soft tissue looked like this. We know every little about the soft bits of these animals. However if you take into account the myriad of different shell shapes and the diversity of modern cephalopods you will see that there is so much more possible than what you usually see.

These are all from the same region and a handful of localities, and yet you can see how diverse they could get, and we didn't even touch the really crazy ones here.

Here the paper: https://riviste.unimi.it/index.php/RIPS/article/view/19942

#sciart #paleoart #palaeoblr #triassic #ammonites #croatia

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monarchbutt · 5 months

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me and my homies pulling up to the function

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kiabugboy · 9 months

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Triassic non-marine horseshoe crabs,

many ancestors of today's marine animals find refuge in brackish environments, as the Permian Great Dying caused the sea to become anoxic and choked most of the marine life at the time

#paleoart #Triassic #paleontology #illustration #invertebrate #horseshoecrab #Limulitella #mesozoic #tanystropheus

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camiliar · 11 months

Photo

The Triassic Cuddle

“The Thrinaxodon was in a torpor and wouldn’t have woken up before it drowned in the rain. The Broomistega was badly injured and dying. Neither of them ever actually knew each other but their last moments are curled up together and immortalized in stone.” -xxx @picckl

#paleoart #my art #quotes that go hard #thrinaxodon #broomistega #triassic #triassic cuddle #paleontology

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stavrosskundromichalis · 4 months

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A skittish Thecodontosaurus antiquus surveying its surroundings. From my book ”De första dinosaurierna” (”The first dinosaurs”)

#dinosaur #illustration #triassic #paleoart #paleontology #paleoillustration #paleoblr #palaeoblr #art #palaeontology #mesozoic #palaeoart

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arminreindl · 9 months

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Still no new croc stuff from me (but I got something in the works), so instead more general paleonews. Today, a new pterosaur ancestor and it looks WEIRD.

This is Venetoraptor gassenae (Gassen's Plunderer from Vale Veneto) is a new lagerpetid literally just published a couple of minutes ago. According to its description (and as seen in the image) it had a toothless premaxilla that was hooked like the beak of a raptorial bird. It may have been covered in keratin, which is interesting as the skulls of early pterosaurs appear to have been smooth. The hands are obviously enormous and the size differences between the fingers are well in line with what pterosaurs would later have (i.e. the fourth finger is the longest, the fifth is reduced in Venetoraptor and absent in pterosaurs), but the legs are still much longer. The claws are described as sharp and scythe-like and again, its interesting that the fourth is the longest, as in other lagerpetids its usually the third that exceeds all others in length. Interesting connection between Veneto and pterosaurs for sure.

In terms of relationships it was found to be nested deep in lagerpetids, which, expectedly are recovered as the sister group to pterosaurs.

It seems to represent a whole new ecomorph not previously known from this group and interestingly coexisted not just with the related Ixalerpeton, but also with some early dinosaurs like Buriolestes. The beak is also interesting. Similar beaks have evolved multiple times in Triassic archosaurs and the hooked tip in particular is common even in modern birds, tho the authors argue that we know too little to say what precisely it was used for. Could be used for ripping flesh (like in falcons) or for eating fruit (like in parrots, fun fact, falcons and parrots are close relatives). As for the hand, the authors suggest that a big driver for ornithodirans playing around with them as the fact that they were not forced to be quadrupedal, so they could be more experimental, leading to hands fit for grasping, climbing and eventually flight.

Also for all those aware of the issues surrounding Brazilian fossils, rest assured, the fossil is being kept at the Centro de Apoio à Pesquisa Paleontológica da Quarta Colônia da Universidade Federal de Santa Maria, so it is in Brazil. The authors are primarily Brazilian (including the lead author Rodrigo Müller) and Argentinian, with two from the USA. Linke: New reptile shows dinosaurs and pterosaurs evolved among diverse precursors | Nature

#pterosauria #pterosaur #evolution #triassic #palaeoblr #paleontology #prehistory #venetoraptor #size comparisson #lagerpetidae

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atomic-chronoscaph · 9 months

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The How and Why Wonder Book of Dinosaurs - art by Kenyon Shannon (1960)

#kenyon shannon #the how and why wonder book of dinosaurs #vintage dinosaur art #jurassic #paleoart #wonder books #darlene geis #triassic #cretaceous #paleontology #children's books #tyrannosaurus #brontosaurus #triceratops #sixties #1960

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dynasoar5 · 1 month

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drawing of a plateosaurus soldier

#drawing #sketch #digital art #digital drawing #anthro #furry #furry art #anthro art #dinosaur #saurian #triassic #plateosaurus #plateosauridae #prosauropod #fantasy art #soldier #dynasoar5 #ssohardd

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dinodanicus · 10 months

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A male eudimorphodon ventures down to the forest to hunt for suitable nesting material.

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knuppitalism-with-ue · 1 month

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Results from the #paleostream!

Trachelosaurus, Peltocephalus, Chakisaurus and Mixtotherium.

#paleoart #sciart #paleostream #palaeoblr #cretaceous #dinosaur #triassic #eocene #turtle

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bobnichollsart · 5 months

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Today's random portfolio artwork is "Archosaurian Dawn," commissioned by and designed in collaboration with The Royal Veterinary College, London: https://www.rvc.ac.uk/research/projects/dawndinos-testing-the-locomotor-superiority-hypothesis-for-early-dinosaurs

#Art #Painting #PaleoArt #PalaeoArt #SciArt #SciComm #DigitalArt #Illustration #Dinosaurs #Birds #Reptiles #Palaeontology #Paleontology #Triassic

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anomallite · 1 year

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In the morning rain

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