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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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    Tim    -  VETERAN SHALE SPLITTER

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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:

  • I found this Informative 2

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

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