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Gabriel Ugueto @serpenillus.bsky.social · 3d

A pair of Cartorhynchus lenticarpus, swimming in the shallow coastal waters of Early Triassic Asia

#paleoart #sciart #art

Illustration showing a pair of Cartorhynchus swimming in coastal waters

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The Onion @theonion.com · 4d

New Study Shows That Bones Are Incredibly Cool

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Emi the Chordate @emichordate.bsky.social · 6d

This is Hadrosteus from Stensiö 1963, an aspinothoracid, rather closely related to Dunkleosteus. It has 4 nostril openings.

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Mark Witton @markwitton.bsky.social · 6d

To brighten up a wet and rainy #FossilFriday, here's my take on the recently described drepanosaur Mirasaura grauvogeli. It's shown among the conifer Voltzia, a plant found in abundance in the same beds as Mirasaura. The pointed sail shape is based on fossil data...

#sciart #fossils #paleontology

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Emi the Chordate @emichordate.bsky.social · 6d

Huh well that's radically different then. Arthrodires have their two nostrils separated by bony elements. And in lobe finned fishes the anterior nostril will migrate and evolve into the choana inside the mouth.

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The Onion @theonion.com · 7d

This is not a paid advertisement. Subscribe at membership.theonion.com to receive the newspaper and see more print-exclusive content.

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Bob Nicholls Art @bobnichollsart.bsky.social · 7d

It's marine reptile Thursday!
Here's my digital painting of the giant #ichthyosaur, #Temnodontosaurus, or, as BBC News called it, the " #SeaDragon Dinosaur Dolphin." This is the 10m long Rutland specimen (Larkin et al 2023).

#SciArt #PaleoArt #MarineReptiles #WildlifeArt #Jurassic #JurassicWorld

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Emi the Chordate @emichordate.bsky.social · 7d

Sure, here's Xiushanosteus from Zhu et al. 2022 and Bothriolepis from Janvier 1996 (32 is the nostrils)

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Emi the Chordate @emichordate.bsky.social · 7d

And of course big up to the artists at NICE Studios who made all these ancient fishes come back to life !

Emi the Chordate @emichordate.bsky.social · 7d

Moreover, unless the four nostrils condition appeared before jaws (rather unlikely in my opinion, most jawless vertebrates have only one nostril), you MUST have had jawed vertebrates with different nostril configurations.

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Emi the Chordate @emichordate.bsky.social · 7d

Off the top of my head antiarchs and Xiushanosteus only have two nostrils. They are currently considered amongst the most basal placoderms.

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Gabriel Ugueto @serpenillus.bsky.social · 7d

Therizinosaurs are, without a doubt, some of the most interesting groups of theropod dinosaurs

Here you have a selection of a few species that I reconstructed for the Fukui Prefectural Dinosaur Museum in Japan for their 25th Anniversary Special Exhibition

#paleoart #sciart #dinosaurs

Various therizinosaurs on a blank background and at scale. From left to right: Fukuivenator, Falcarius, Beipiaosaurus, Alxasaurus and Therizinosaurus

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Emi the Chordate @emichordate.bsky.social · 7d

That is true, I was just talking within the stem-gnathostome framework ^^'
Clearly not all placoderms have four nostrils and it is not trivial to understand when this character appeared so I'm being cautious

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Emi the Chordate @emichordate.bsky.social · 7d

And of course big up to the artists at NICE Studios who made all these ancient fishes come back yo life 👏🏻👏🏻👏🏻

Emi the Chordate @emichordate.bsky.social · 7d

Great exhibition, closing soon ! A lot of effort was put into this project ! Here are some pictures from my visit some time ago :

Emi the Chordate @emichordate.bsky.social · 7d

Just as a precision, Dunkleosteus was much smaller than O. megalodon, with more conservative estimates giving it slightly more than 4 meters in length. O. megalodon was of a maximum size of between 15 and 25 meters iirc.

Emi the Chordate @emichordate.bsky.social · 7d

Yes, Dunkleosteus had four nostrils like most members of its family

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Emi the Chordate @emichordate.bsky.social · 7d

I guess if the exhibition was a success they will eventually take it to some other big city in China like Shanghai or Guangzhou

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Natalia Jagielska @nataliajagielska.bsky.social · 8d

More temporary palaeo exhibitions to check out in China, fossil fish in "Touch the Deep Ocean". At the Phoenix Centre, Beijing.

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Emi the Chordate @emichordate.bsky.social · 7d

Great exhibition, closing soon ! A lot of effort was put into this project ! Here are some pictures from my visit some time ago :

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Chiitan🌈ちぃたん☆ @chiitan.love · 15d

Every day, I pray for a world where everyone is kind and respectful of each other, regardless of gender.

May unreasonable attacks against transgender people end🏳️‍⚧️🏳️‍🌈

May today be filled with happiness and love for you all🤍

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Dr Mark D. Scherz @markscherz.bsky.social · 15d

Four generic frogs? No! These are members of four different FAMILIES from Europe, Borneo, Madagascar, and East Africa, convergently evolved on the generic brown frog morphotype! 🧪🐸

Ranidae: Rana temporaria, a generic brown frog from Denmark.

Dicroglossidae: Limnonectes paramacrodon, a generic brown frog from Borneo.

Mantellidae: Aglyptodactylus madagascariensis, a generic brown frog from Madagascar.

Pyxicephalidae: Amieitia tenuoplicata, a generic brown frog from Tanzania.

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mossworm.bsky.social @mossworm.bsky.social · 16d

most scientists are also people who would like to eat food and have rights

Mike Young @mkeyoung.bsky.social · 21d

How to avoid politics on Bluesky 🦋 [THREAD]
When scientists left X, many hoped for a quieter space. But politics will take over your feeds unless you actively do something about it. This guide will help you if you just want to follow your scientific interest!
mikeyoungacademy.dk/researchers-...

Researchers are (also) stoking politics on Bluesky. Here is how to avoid it

When researchers migrated from X to Bluesky, the hope was for a quieter space. They wanted less outrage, and more science. But reality is biting back. So here are a few tips to avoid the politics anyw...

mikeyoungacademy.dk

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Joschua Knüppe @joschuaknuppe.bsky.social · 16d

Apparently I forgot to post this one!
From the coast we go ever inward! The Mangrove forests of Lemuria consist largely of Nypa palms that grow along and in the waterways.
Meet the weirdos of this green cathedral, with semi-aquatic sirenians, climbing crocs and tons of fish and birds.

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Rudolf Hima @himarudolf.bsky.social · 22d

Southern Sun

A coalition of Giganotosaurus carolinii patrolling on the nearby hill with a squadron of azhdarchids flying overhead seeking shelter from incoming storm.

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Joschua Knüppe @joschuaknuppe.bsky.social · 23d

Please welcome Cariocecus bocagei! A new, basal hadrosauroid from the early Cret. of Portugal! This guy is known from a pretty nice skull, which makes it one of the best ornithopod fossils from Iberia so far! I loved during this little portrait for main author Filippo Bertozzo...

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