#ubirajara

[bookrat]

End-of-the-month sale guys~

Ubirajara is $1800

[saritapaleo]

Finally released from the Dinosaur Hell of my own making, I bring to you some extra size charts comparing related species that I’ve drawn so far!

Huge congrats to everyone who completed Archovember this year, as well as to those who are still working through the list at their own (healthier) pace! It was nice having a couple extra people to check in on on Tumblr this year too! It was so fun seeing everyone’s take on these species, and being able to give some of the lesser-known ones some much deserved attention.

I’d like to urge people to go to my Instagram SaritaPaleo and see the story highlights, check out what other people have drawn, and give them some likes and comments as well. A lot of people put so much effort and creativity into this year!

I’ve also just posted some polls to my Instagram story about next year’s Archovember, particularly about the order the species will be drawn in and if I should move the challenge to a different month. If you plan to participate next year please check that out asap, as it may change how this challenge goes in the future!

[alex-fictus]

U is for...?

All of the U names in my Paleo Party! Are there any I'm missing?

Note: Ubirajara is a placeholder name for a particular specimen. This species was unpublished following the illegal transport of this specimen from its country of origin (Brazil). I hope someday this fossil gets the chance to be re-described legally.

Stickers || Phone Wallpapers Masterlist

[bobnichollsart]

My 25 years of palaeoart chronology...

Here's a zoom into my 2020 "Ubirajara Flashdance" painting. The Ubirajara fossil was returned to Brazil in 2023.

[prairiegh0st]

Dinocember 2023 Week Three

[the-little-armored-one]

Imma have to introduce y'all to Jaguar Queen/Ubirajara. She is so fuckin' awesome can't even begin to describe it

[duckdruid13]

Ubirajara was a peculiar, chicken-sized dinosaur that lived in Brazil around 110 million years ago. Its name, meaning 'lord of the spear,' refers to its unique display feathers. These consisted of two stiff, ribbon-like structures extending nearly six inches from each shoulder. Likely used for courtship, these flashy structures may have resembled the extravagant displays of modern birds-of-paradise, playing a central role in mating dances and attracting partners.

[sinosauropteryx--prima]

National Fossil: Brazil

Last time Argentinosaurus won the title of Argentinas National Fossil (not surprising) and Argentavis came in second (kinda surprising; I didn‘t know you guys liked big-ass birds that much). This time we‘re looking at some Brazilian fossils!

Once again, you get to vote on which one should represent the nation. As always, it could be a fossil that is just exceptionally well preserved and beautiful, had a huge impact on paleontology and our knowledge of the past, is very common/representative of the area, is beloved and famous in the public eye, is just a very unique and interesting find, or has any other justification.

Here are the contestants:

Tupandactylus/Tapejara (Art by Gabriel Ugueto): There are no big-ass bird competitors this time around, but I can offer you the next best thing: Pterosaurs! There have been many pterosaur species described from Brazilian fossil sites and they have greatly improved our understanding of these creatures. I picked Tupandactylus/Tapejara (there is some dispute about naming/species) to represent this group, because their big creasts make them some of the most visually interesting pterosaurs and with a wingspan of up to 4 m they also reach quite impressive sizes.

“Ubirajara“ (Art by Bob Nicholls): Next up is a small theropod dinosaur. The fossil has been found in Brazil, but then was smuggled out of the country (allegedly) and found its way to Germany. A lot of legal dispute and campaigning later, the dinosaur became a bit of a symbol against colonialism in paleontology. Just this year the fossil finally found its way back home, and probably will be re-named soon, since the original paper about it has been retracted.

Irritator: This relative of the much more famous Spinosaurus got its name because of how frustrating and challenging the restoration of the fossil was: Fossil hunters had made a lot of changes and “repairs“ to the original skull to make it more appealing. Scientists then had to spend a lot of time undoing all those changes. But even after all of that, Irritator‘s skull is one of the best preserved spinosaur skulls ever found.

Purussaurus: This relative of modern caimans lived during the Miocene epoch. With size estimates of well over 10 m it was one of the biggest crocodylians ever, rivaling even some of the biggest carnivorous dinosaurs in terms of size.

Prionosuchus (Art by Thomas Sutton): You might be wondering why I‘m showing you yet another crocodile - you are mistaken! Prionosuchus is not a croc, it is an amphibian. It lived during the Permian, so it is older than all other creatures on this list. Some of the biggest specimen found suggest that it might have reached a length of up to 9 m, making it one of the largest amphibians ever.

What should be Brazils National Fossil?

Tupandactylus/Tapejara

“Ubirajara“

Irritator

Purussaurus

Prionosuchus

Other (Comment)

Voting ended onNov 3, 2023