#avisaurus

[hell-creek-colony]

I'm too tired to write anything substantive right now so have some relevant Mark Witton art.

[alphynix]

Avisaurus darwini here lived at the very end of the Cretaceous, about 66 million years ago, in what is now the Hell Creek fossil beds in Montana, USA.

It was a member of a diverse group of Mesozoic birds known as enantiornitheans, which retained claws on their wings and often still had toothed snouts instead of beaks – and being part of the avisaurid family it was also one of the larger known examples of these birds, similar in size to a modern hawk at around 60cm long (~2').

Although this species is only known from isolated foot bones, the remains have distinct enough anatomical features to show that Avisaurus had powerful gripping talons similar to those of modern hawks and owls, suggesting it had a similar lifestyle hunting small vertebrate prey in the ancient swampy Hell Creek ecosystem.

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References:

Clark, Alexander D., et al. "New enantiornithine diversity in the Hell Creek Formation and the functional morphology of the avisaurid tarsometatarsus." PloS one 19.10 (2024): e0310686. https://doi.org/10.1371/journal.pone.0310686

“Predatory birds from the same fossil formation as SUE the T. rex.” Field Museum, https://www.fieldmuseum.org/about/press/predatory-birds-from-the-same-fossil-formation-as-sue-the-t-rex 

Wikipedia contributors. “Avisauridae” Wikipedia, 21 Oct. 2024, https://en.wikipedia.org/wiki/Avisauridae

Wikipedia contributors. “Avisaurus” Wikipedia, 09 Nov. 2024, https://en.wikipedia.org/wiki/Avisaurus

[ppaleoartistgallery]

#Paleostream 10/12/2024

here's today's #Paleostream flocking sketches!!! today we drew Anhanguera, Sordes, Avisaurus, and Mawsonia

[talons-n-scales]

notoriously shy about sharing my stories unless directly asked about but these dinosaurs have been eating away at my brain so you get the paleo blast 💥

River the spinosaurus and Smoke the avisaurus are a young duo in a late Cretaceous world where some dinosaurs have refined the art of wielding elements. The earth below and the sky above holds secrets that River finds herself tied to through strange dreams.

[the-dragon-girl-27]

flocking paleostream sketches

Magnapaulia, Kaprosuchus, Torosaurus, Regaliceratops

[lampire13]

young man where did you get that avisaurus

[theenatiornithebandwagon]

GRAHH ITS SO BEAUTIFUL

[cosmicpaleonerd]

Why’s that cow looking at me funny?

(W a little Avisaurus cameo)