Palaeontologist 🦕 | Triassic marine reptiles 🦎➡️🐬 | Asst Prof at @IPaleoPAN 🇵🇱🇪🇺

Joined February 2015
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New paper out now in @fossil_record! Together with @Feikosaur, @GBindellini, E. Maxwell and C. Dal Sasso, we describe the foetus of the Middle Triassic #ichthyosaur Besanosaurus leptorhynchus from Monte San Giorgio 🇮🇹 with insights into ichthyosaur taxonomy and reproduction! 👇
aby ichthyosaur alert! Here we describe the Besanosaurus foetus in detail. The holotype of Besanosaurus was thought to preserve embryonic material earlier, but here it is in detail. It is a single foetus. lying in tail-first presentation.fr.pensoft.net/article/18312…
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Andrzej Wolniewicz retweeted
Live Cymbospondylus reactions #SurvivingEarth
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To give you a sense of scale, Cymbospondylus petrinus, the best known species, could reach the size of a killer whale - here's me with a cast of a partial skeleton from the collections of the @RoyalTyrrell. But one species could even reach twice this size! #SurvivingEarth
#SPOILERS The Middle Triassic ichthyosaur Cymbospondylus is featured in #SurvivingEarth! It's only the second (after BBC's Sea Monsters) portrayal of this animal on TV and, oh, wow, it's awesome! 🤩 The head w/muscles filling in the temporal fenestrae looks great! 1/4
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#SPOILERS The Middle Triassic ichthyosaur Cymbospondylus is featured in #SurvivingEarth! It's only the second (after BBC's Sea Monsters) portrayal of this animal on TV and, oh, wow, it's awesome! 🤩 The head w/muscles filling in the temporal fenestrae looks great! 1/4
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The individual is seen swimming into/out of a shallow lagoon - we know Cymbospondylus could do that as there are specimens known from the Monte San Giorgio lagoon, but only from time intervals when the lagoon had a good connection with deeper waters 3/4
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Not really sure if the animal had the capacity to crawl onto land to hunt for prey like modern killer whales (and even if it did, nothosaurs and tanyatropheids would have probably been more likely targets), but it's an interesting hypothesis! Fantastic cameo! 🤩 4/4
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Andrzej Wolniewicz retweeted
CYMBOSPONDYLUS 🗣️🔊🔊🔊
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Andrzej Wolniewicz retweeted
🚨Out today in @Nature our new paper uses deep learning to map four decades of global human migration. By building the first comprehensive dataset of global annual flows (1990-2023), we reveal that migration has nearly tripled since 2000. 🔗nature.com/articles/s41586-0…
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Andrzej Wolniewicz retweeted
Body size evolution through shifting climatic conditions in Mesozoic dinosaurs onlinelibrary.wiley.com/doi/… #FossilFriday
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Andrzej Wolniewicz retweeted
Proponuję zacząć od usunięcia z Rady @NCN_PL wszystkich, ktorzy nigdy nie mieli grantu ERC.
Rada #NCN zapowiada zmiany w zasadach udziału w konkursach NCN. Mają one dostosować reguły do rosnącej liczby wniosków i zwiększających się kosztów realizacji projektów przy ograniczonym budżecie Centrum. ncn.gov.pl/aktualnosci/2026-…
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Andrzej Wolniewicz retweeted
Ever wondered what goes on behind the scenes in the Museum? Dig into the ichthyosaurs, plesiosaurs and other marine reptiles we look after ⬇️
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Andrzej Wolniewicz retweeted
ONE DAY AWAY FROM #SurvivingEarth ... Permian and Triassic creatures have never looked this beautiful!
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Andrzej Wolniewicz retweeted
Poza tym, że profesor Chacińska ma naprawdę imponujące osiągnięcia (nie próbuję udawać, że rozumiem jej artykuły, ale to są topowe pisma - w maju Science Advances jako senior author...) jest też naukowcem bardzo projakościowym, znanym z przypominania o konieczności wspierania jakości w krajowej nauce. Mi Agnieszka, którą mam przyjemność znać osobiście, bardzo pomogła w reformie mojego instytutu, gdy byłem dyrektorem. Oby więcej takich liderek - znakomita decyzja Prezydium @PAN_akademia
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Andrzej Wolniewicz retweeted
A new paracrocodylomorph archosaurian from the Chañares Formation (Argentina) & revision of key loricatan features onlinelibrary.wiley.com/doi/… #PapersinPalaeontology @Lautaro_RB @museodelaplata @SecTurLaRioja @turismoycult @CONICETDialoga @MorphoSource @MorphoBank @WileyEcology
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Andrzej Wolniewicz retweeted
🦖 The first 'T. rex leather’ bag up for auction in Paris Scientists and fashion brand Enfin Levé have brought the first “T. rex leather” bag to life, something sure to delight Jurassic Park fans. The unique bag will be auctioned on June 11 in Paris, with an estimated price between €300,000 and €500,000.
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Andrzej Wolniewicz retweeted
The scale of the Megaloceros horns is incredible (Zoology museum of the Jagellonian University). They grown them in a single year and then shed it, and repeated the cycle next year. How on Earth they acquired sufficient amount of minerals and nutrients?
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Andrzej Wolniewicz retweeted
Von Baer's Law. Baleen whales face at first resembles that of a seal, thus recapitulating primitive ancestral mammalian morphology. Later, turns to this alien 'pelycan'.
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Andrzej Wolniewicz retweeted
Za najniższą krajową nie da się być doskonałym w nauce (...) Albo otworzymy się na prywatne finansowanie, albo zostaniemy na obrzeżach nauki – mówi dziś w FA prof. Joanna Tyrowicz @GRAPE_ORG @UniWarszawski forumakademickie.pl/prof-joa…
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Andrzej Wolniewicz retweeted
Um novo arcossauro paracrocodilomorfo de grande porte da Zona de Assembleia de Tarjadia (Ladiniano Superior ao Carniano Inferior) da Formação Chañares (Argentina) e uma revisão das características-chave de Loricata onlinelibrary.wiley.com/doi/…
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