Carnotaurus Was Not Alone! Meet New Short-Faced Predator Koleken!

Abelisaurs were a large group of successful short-skulled, tiny-armed, theropod dinosaurs that thrived throughout Cretaceous South America with many other examples across the Gondwanan continents - North Africa, Madagascar, and India. You are likely most familiar with their biggest known member - Carnotaurus, the meat eating bull. However, there were many more and more are found all the time. Let’s meet the latest member, a critter that shared the ecosystem with Carnotaurus itself.
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Art in Thumbnail belongs to - Gabriel Diaz Yanten or PaleoGDY
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✅Tyler Addison ✅
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✅Adam Midzuk ✅
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✅ RESEARCH ✅
Pol, Diego; Baiano, Mattia Antonio; Černý, David; Novas, Fernando; Cerda, Ignacio A. (21 May 2024). "A new abelisaurid dinosaur from the end Cretaceous of Patagonia and evolutionary rates among the Ceratosauria". Cladistics. doi:10.1111/cla.12583.
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[@luciusfucius]

*Plot twist * it's a female carnotaurus 😮😱

[@sheeeenogoji7603]

Or a juvenile

[@DYXAnims69]

Or a teen

[@theangrysuchomimus5163]

It could also be like coyotes and wolves. Both are in the same genus and their range overlaps.

[@SarastistheSerpent]

Possibly, but there’s actually no evidence of sexual dimorphism in any non-avian dinosaur, so if true, Carnotaurus would be unique

[@EDGEscience]

There is evidence! It's just hard to attach that evidence to a specific sex.

[@mandrakeblake-tw1uv]

Koleken just sounds like someone whom miswrote Kelenken.

[@rosalinadeanda-zd6nn]

Amazing, it seems like Abelisaurids really had a intresting way to evolve. They evolved large heads, small arms, and large nimble bodies that allowed them to run at fast speeds but catch larger prey. Koleken adds more to our further undertstainding of Abelisaurids.

[@2001septeleven]

I love how if a video is about an abelisaur carnotaurus is a god

[@Sea-raider]

Whoa, the Carnotaurus has some company!

[@alioramus1637]

This video was really well done! Was gonna read the paper but you summarized it so well. Abelisaurids are a gondwanan success story.

[@blueguy2128]

Just how sick are dinosaurs?? Just imagine, fossils are only a tiny fraction of the real wild life during that time. It must've been magical

[@madderhat5852]

'Short-Faced Predator' was was we called our creepy math teacher. (The teacher was creepy, not the math)

[@Cody38Super]

Oh, I thought thought thought he abruptly showed you his personality......(you know, because he wasn't rwo-faced....he was short faced...) Your math teacher was a "short dicked predator" would have been funny as well....probably more accurate, or a little column "a", a little column "b"......both of us thought about this to much already, I'm gonna go now.

[@elnovillomapuchedehomerus2412]

There's lots of palaeontologist teams digging up fossils in la colonia so is no surprise we will have more dinosaurs coming soon from that formation.

[@ISURAH-484]

Great video 👌

[@charlesmartin1121]

So they don't think it's a Carnotaurus female and they don't think it's a Carnotaurus subadult...but what if it's a female subadult Carnotaurus?

[@EDGEscience]

Subadults of both sexes tend to look more alike.

[@Moulton_Lava]

Nice credits song

[@canis2020]

These guys remind me of PEZ dispencers

[@1998topornik]

If carnotaurus was lion of this ecosystem this guy was either leopard or hyena in term of niche (probably).

[@lochness5524]

8:15 was this dichotomy from the og paper describing the holotype, or was their a more recent paper that was better able to figure out the relationships between the Carnotaurus tribe?

[@EDGEscience]

This is from the Koleken paper, so it's the most recent.

[@Becky-kl1iv]

what if it a female carno

[@__-my6wy]

Am i wrong as i thought Pycnonemosaurus was the largest abelisauroid?

[@EDGEscience]

Pycnonemosaurus is so much more fragmentary than Carnotaurus and so similar in size, that Carnotaurus is the largest best abelisaur. Pycnonemosaurus has the *potential* to be the biggest, but it's very shaky.

[@bricksloth6920]

I am picturing the little arms with feathers like an emu

[@Psycho_herb]

Thanks to carno we know abelisaurs had no feathers

[@bricksloth6920]

It's wearing a feather bolero jacket

[@yahwea]

interesting finding

[@DreadEnder]

PaleoGDY is great

[@annamay2921]

No hurry, but when is Paleo rewind?

[@matthewfrancis9987]

Pycnonemosaurus is larger then carno

[@EDGEscience]

Pycnonemosaurus is so much more fragmentary than Carnotaurus and so similar in size, that Carnotaurus is the largest best abelisaur. Pycnonemosaurus has the *potential* to be the biggest, but it's very shaky.

[@stevenelbert8989]

You know if and when prehistoric planet season 3 comes out it could feature carnotaurus and the formation it lived in and feature koleken and the new titanosaur that lived with both abelosaurids in a possible South America segment or episode takeing place in South America

[@rowlandp6314]

Not convinced yet, we need more fossils.

[@ej2u545]

Is there a possibility that was the female of carnotaurus. Sexual dimorphism is extremely common in both mammals and birds so, is it really off the table?

[@EDGEscience]

Nothing is off the table, but I explain why it's not the most parsimonious hypothesis.

[@puertoaeternus486]

What happened to your old Acrocanthosaurus video?

[@touhouandvocaloidfan8682]

me who plays path of titans and see kolenken : wait hornless pycnonemosaurus is this you !? sorry but XD

[@jameswilliams2075]

Pycno is naturally hornless the other models are based on carno

[@touhouandvocaloidfan8682]

@@jameswilliams2075 we dont have the skull of pycno thou but i know in game its walmart carno

[@colinmathura-jeffree9829]

I hope you do tat Apex Stego 27 foot long majestic beast

[@lochness5524]

Was the La colonia Plesiosaur a freshwater adapted species?

[@PlumpFroggo]

Micheal Pittman is my teachers husband 😮 Marriane teaches at my school

[@RaelNikolaidis]

I didn’t have my glasses on and I misread the title as “ Shark Faced Predator “ . Bit disappointed.

[@terrysyvertson9205]

it's probably going to end up being discovered to be a young carnotaurus

[@djstarrjunkie]

What were the purposes of these meat-eating creatures, and their very small, arms?

[@EDGEscience]

There are a few hypotheses. The leading one is that it was sexual selection combined with needing a bigger heavier head for killing prey.

[@elnovillomapuchedehomerus2412]

There's some theories related to feeding behavior that some dinosaurs were pretty aggressive once it was dinner time and that they could end up bitting off their arms and getting infected due to these aggressive behaviors so some species evolved shorter arms in order to avoid such injuries meaning that the shorter the arms the more aggressive and territorial a dinosaur was during dinner time.

[@seanmckelvey6618]

Always down for more flat-faced fellas. I do have to wonder if it will later be discovered that Koleken here was a juvenile Carnotaurus, or maybe a female. Either way, more discoveries mean more questions, and more possible answers for them.

[@RokuroCarisu]

Yoshi!

[@1_of_a_kind_40]

0:21 Pycnonemosaurus is larger than Carno

[@EDGEscience]

Pycnonemosaurus is so much more fragmentary than Carnotaurus and so similar in size, that Carnotaurus is the largest best abelisaur. Pycnonemosaurus has the *potential* to be the biggest, but it's very shaky.

[@1_of_a_kind_40]

@@EDGEscience Isn't the Pycnonemosaurus specimen that has been discovered a subadult or is it now considered to be an adult

[@GravityGamerMPG]

*

[@HidalinaB]

Ask edge that I have two questions 1. Is how thick and strong is a triceratops head and horn, did they really use them for defense and which triceratops species has the best offense and defense when it comes to fighting if there bad at defense then which one has better fighting abilities and greatest weaponry to fight the T. rex and other dinosaurs. 2.Ask him this to is this really a different species of ceratopsian dinosaur or is just a triceratops or it is a triceratops but a different species of one

[@matem1649]

kzbin.info/www/bejne/sGGxZaGtbZeDsKM Pycnonemosaurus is the biggest Abelisaur not Carnotaurus

[@HidalinaB]

Who will win in a fight triceratops vs T. rex

[@TheAnimalKingdom-tq3sz]

Everybody gangsta till the fun-hating paleontologists published a controversial 'discovery'

[@EDGEscience]

Huh?

[@BerserkEnjoyer636]

What does this mean

[@Cody38Super]

I consume a lot of paleo content.....now I always can't help but wonder...........I have I heard this somewhere before........... Hahahahahahaaaaaaaaaa! Ohhhhhhhh......s h i t.

[@thedarkmasterthedarkmaster]

Far cooler than Carnotaurus