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Mammal jaw


RickNC

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Hi all,

 

Need a little help with this one. This partial jaw was found in north central Florida and I have been puzzling over it for awhile now. I believe it is a cervid but can't find a good match. I compared it to a modern whitetail deer but the teeth seem different to me. The bone is about the same size as the deer I compared it with but the teeth are much smaller than the modern jaw. Note that there is a partial tooth on what I believe to be the anterior end. 

 

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Looks like deer to me, what type I can't say.

“...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin

Happy hunting,

Mason

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@Harry Pristis should be able to help with this

Bulldozers and dirt Bulldozers and dirt
behind the trailer, my desert
Them red clay piles are heaven on earth
I get my rocks off, bulldozers and dirt

Patterson Hood; Drive-By Truckers

 

image.png.0c956e87cee523facebb6947cb34e842.png May 2016  MOTM.png.61350469b02f439fd4d5d77c2c69da85.png.a47e14d65deb3f8b242019b3a81d8160.png.b42a25e3438348310ba19ce6852f50c1.png May 2012 IPFOTM5.png.fb4f2a268e315c58c5980ed865b39e1f.png.1721b8912c45105152ac70b0ae8303c3.png.2b6263683ee32421d97e7fa481bd418a.pngAug 2013, May 2016, Apr 2020 VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png.af5065d0585e85f4accd8b291bf0cc2e.png.72a83362710033c9bdc8510be7454b66.png.9171036128e7f95de57b6a0f03c491da.png Oct 2022

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10 minutes ago, sixgill pete said:

@Harry Pristis should be able to help with this

 

It's a white tail deer mandible with p3-p4. It would have been useful to photograph homologous teeth side-by-side.  Size differences depend on gender and individual variation.

 

 

 

deer_premolars.JPG

  • I found this Informative 4

http://pristis.wix.com/the-demijohn-page

 

What seest thou else

In the dark backward and abysm of time?

---Shakespeare, The Tempest

 

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Could one reason that the jaw was a smaller size be that the fossilized version was a juvenile?

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Deciduous lower premolars certainly are smaller than their permanent replacements.  However, I don't think the teeth are deciduous.  Here's an example where the three premolars are deciduous with the three (permanent) molars:

 

 

deerdentaries.jpg

  • I found this Informative 1

http://pristis.wix.com/the-demijohn-page

 

What seest thou else

In the dark backward and abysm of time?

---Shakespeare, The Tempest

 

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