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Anterior and posterior ventral parts of Bothriolepis


m.e.clark

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Hello,

For academics purpose, I must identify parts of a fine specimen of Bothriolepis canadensis. 
I've spent a great deal of time trying to find how these parts were called, and couldn't find a convincing answer. 
One of my guess is that the anterior central structure shown on the pictures is the preorbital recess, but I'm pretty unsure of what would be the two cavities on its side, if it is indeed the preorbital recess. 
My second interrogation concerns the posterior end, where there are two mores plates, in V shapes. Then again, I have no clue what those might be. 

Therefore here I am, seeking help from more knowledgeable people on the subject.

Thank you!

bothriolepis.jpg

bothrio2.jpg

Edited by m.e.clark
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Tidgy's Dad

Hello, and a very warm welcome to TFF from Morocco! :)

I can't help with your query, but that's a gorgeous specimen. 

Did you find this yourself? 

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Thank you!
And oh, no, I wish I did, though. 
It's part of my university's collection. 

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I can't help either but very nice specimen! Where was it collected?

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At Miguasha National Park, in the province of Quebec, Canada! The area is protected and designated as a UNESCO World Heritage Site for its fossils. 

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I’m not anywhere near sure but perhaps posterior and anterior superognathals nostrils and the postnasal foramen.

source: Here

awesome fossil to look at!

 

BCDE3671-6A3E-4084-AF03-615E87D68CFB.jpeg

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Fossildude19

Hello, and Welcome to the Forum. :) 

 

Google can open up a world of information with the correct search terms. ;) 

 

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I think you're seeing the internal surface of the premedian and lateral plates here.

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@Fossildude19
Oh trust me I spent hours on google, but they always give the dorsal plates when it comes to the head, never the ventral ones...
Thank you for the welcome!

@jdp  @WhodamanHD
Thank you for the suggestions!

Anyone has an idea for the posterior weird fin-like plates at the bottom of the picture?

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Fossildude19

@m.e.clark

 

Perhaps the odd posterior plates are the "Dermal Pelvic Girdle" ? 

 

 

 

 

Minicrania1.gif      675.-.12.jpg

 

1-s2.0-S163106831100056X-gr1.gif    rsbl20111033supp1.jpg

 

 

ZI-5VWG-2015-SEP00-IDSI-197-1.jpg     PSM_V82_D434_Restoration_of_a_bothriolepsis_canadensis.png

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