Irritator's New Mouth

A new paper looked at Irritator, a spinosaurid from Brazil. It found that the mouth was much different from what we normally see in theropods. But it also starts the conversation on an irritating part of the fossil's history.

Read the paper here:

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[SuperMeethead]

At this point we should just rename the entire spinosaurid clade to "irritatids"

[Phobic_Nova]

spinosaurid try not to change anatomy every 2 weeks challenge (impossible!)

[danilodesouza]

Spinosaurids are the most utterly chaotic dinos.
I always find interesting how Irritator’s movement-tracking brain could help them eat pterosaurs when the opportunity presented itself. There’s a pterosaur fossil from the same formation with bite marks that match Irritator’s teeth. It’s just very unclear whether it’s a sign of predation or scavenging

[alienstar]

This pretty much sums up why I LOVE Spinosaurids, they are just so weird with adaptations found in no other Dinosaur family.

[TarbosaurusBaatar]

“New evidence from Irritator may show that Spinosaurus could actually shovel schools of fish into its mouth by unhinging its jaw into a shovel and scooping them all up. This could also show that Spinosaurus could eat animals like Rugops and Carcharodontosaurus by swallowing them whole like a snake. Truly fascinating.”

[sampagano]

Spinosaurids finally entering the realm of anatomy i actually understand. That's an awesome asaptation.

Also im contractually obligated to say that snakes dont actually unhinge their jaws, they use stretchy ligaments to increase the flexibility of their jaws.

[thefirehawk]

I really hope that someone will study the skull of Suchomimus and compare it to the one of Irritator, since both are spinosaurids yet their skulls look very different when compared to each other directly.

[TheLaw]

If it really was the case and their mouths opened like in the art at 1:52 then, The Isle's Hypo Spino would be surprisingly close to accurate lmao.

[Mr-DNA_]

Babe wake up. New revolutionary Spinosaurid Study dropped.

[thegek]

Yes I do like the pelican swallowing that just makes sense, you know nature. You look at a lot of fish eating birds and you see them do this with there jaws BUT I like the hypo spino/shin godzilla lower jaw split so I'm going to now see them doing that from now on.

[Sgrinwaipwr]

Irritator is no longer only interesting for its funny name.

[alioramus]

I waited for you to make a video on this paper! Spinosaurid anatomy changes all the time.

[rileyernst]

Well it does explain how they were swallowing those large sized fish. Or similar sized chunks of even bigger fish/crocodiles.

[rangerjurassico]

Great video, im from brasil and i like you take this topic of fossil robbery.
If you gonna make more videos of spinosaurids, talk about irritator and angaturama

[rileyernst]

When you're hiking through Cretaceous Brazil and something keeps ransacking your camp, and nicking the fish off your fishing line, you know you're beset by an irritator. When it challenges you to a throwdown, you are ready to identify it at a species level.

[WHACK_space_rock]

Thanks for bringing up the potential legal actions concerning this specimen. One of the things that burn me up is when things like this happen. I remember when the Feds swooped in and "appropriated" Sue from the Black Hills Institute, I was so angry at the government for doing that, it still angers me when I read any accounts of what happened...I know this particular case is quite different from Sue's story, and hopefully this get resolved so all parties involved are satisfied....

[DinoNerd]

Nice video! It’s always fun to learn more about spinosaurids and in this case irritator

[stephenlamb]

Am I the only one who looked at the thumbnail and thought of the Hypnos from the Isle?

[LuisAldamiz]

That's what you need to catch fish: a fast bite, not so much a powerful one (fish "bones" are soft)

[olivgrden]

thank you so much for talking about scientific exploitation and giving this topic space. this is so important for authentic and ethical research; it's fantastic to know that this platform is being used to spread awareness on this issue.