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Antorbital fossa


dinosaur man

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Hi I’m wondering what the Antorbital fossa is for in dinosaurs. I heard it could be part of muscle attachments or nasal passages. If so if a dinosaur has a big Antorbital fossa does it mean they have better nose or stronger jaw muscles. Thank you!!

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LINK 1

 

LINK 2

 

You'll learn more, if you read it for yourself, rather than for anyone to just tell you.  ;) 

 

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1 hour ago, Fossildude19 said:

LINK 1

 

LINK 2

 

You'll learn more, if you read it for yourself, rather than for anyone to just tell you.  ;) 

 

I did read the second one but I am also wondering if a dinosaur has a big Antorbital fossa does it mean they have a better nose or stronger jaw muscles?

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Fossa are grooves, rather than an opening. Many archosaurs had an antorbital fenestra, an opening or hole. 

It housed the paranasal sinus. Being the largest hole in the skull, it was probably for better smell. 

And being another hole in the skull, it would make the mandible weaker, I would assume.  :trex:

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Thank you!!

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