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#pterosauria
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.
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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.
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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
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confusedhadrosaur · 6 months
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Day 13: Dorygnathus banthensis
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makairodonx · 5 months
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A color-pencil impression of the giant rhamphorhynchine pterosaur Dearc sgiathanach, which hails from the Bathonian-aged Lealt Shale Formation of Scotland, for St. Andrew’s Day. It had a 3-meter-long wingspan and was probably the single largest pterosaur of the Middle Jurassic, around 168-165 million years ago.
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carvente · 2 months
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New Discoveries: Ceoptera Evansae
Vector art by me
More.
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gingericywolf · 8 months
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Venice natural history museum
Flying reptiles and more dinosaurs
Pt 5
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harpagornis · 5 months
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On Navajodactylus
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Two depictions of Navajodactylus as a non-azhdarchid pterodactyloid, by Spooky and Corvarts respectively.
Navajodactylus boerei is an interesting Late Cretaceous pterosaur from the Campanian of the San Juan Basin (then part of Laramidia). Represented by a single ulna, it was tentatively attributed to Azhdarchidae when first discovered, and indeed specimens attached to the genus found in Canada were transfered to the azhdarchid Cryodrakon boreas. However, the original specimen has no features attributed to Azhdarchidae, and indeed Mark Witton is not convinced it belongs to this clade (Witton 2013).
This means that Navajodactylus is an example of a non-azhdarchid pterosaur from the Late Cretaceous, though further studies will need to be made. Personally, I think it is a ctenochasmatoid based on two criteria:
Coupled with how scarce pterosaur remains are, a ctenochasmatoid ghost lineage enduring to the Late Cretaceous is plausible, if needing more work.
Until then, this goober should be considered quite a remarkable animal
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justgoji · 10 months
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Hatzegopteryx thambema. This was an absolute nightmare to color, and I’m not satisfied with the final product at all. :/
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With Hatsune Miku for scale:
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ungojirasapiente · 1 year
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some heads of a couple pterosaurs, nothing else to say ------ algunas cabezas de pterosaurios, nada mas que decir
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extinctworld-ua · 7 months
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Petrodactyle
Petrodactyle — вимерлий рід ктенохазматидних птерозаврів з пізньоюрської формації Мьорнсхайм (вапняки Зольнхофен) у Баварії, Німеччина. Рід містить єдиний вид, P. wellnhoferi, відомий за частковим скелетом, що належить нестатевозрілій особині. Petrodactyle — один з найбільших птерозаврів Зольнхофена і один з найбільших птерозаврів юрського періоду, його розмах крил оцінюється в 2,1 метра.
Повний текст на сайті "Вимерлий світ":
https://extinctworld.in.ua/petrodactyle/
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lillyosaurus · 1 year
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fundinofactoftheday · 2 years
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Dinofact #13
Although they are often grouped together, prehistoric animals such as pterosaurs and plesiosaurs are not dinosaurs, instead belonging to pterosauria and sauropterygia, respectively.
Source: wikipedia [1] [2] [3]
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tadpoles-yay · 9 months
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The flesh on bones
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Crest and more meat 🥩
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Outline is done
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confusedhadrosaur · 6 months
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Day 8: Zhejiangopterus linhaiensis
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makairodonx · 8 months
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68 million years ago in the middle of what is now the Javelina Formation of Texas, a single huge Alamosaurus carcass has attracted the appetites of a wide variety of hungry carnivores: a flock of enantiornids, two troodontids, a pair of Quetzalcoatlus nothropi, and a lone Tyrannosaurus rex.
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carvente · 1 year
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No dinosaurs #dinovember2022 day 21: Anurognathus
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gsoo0gh1gbpzv · 1 year
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