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Piece Of Jawbone With A Hidden Surprise


Miatria

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I found this small piece of jawbone with 1 tooth in Florida's Alafia River on Friday. The jawbone segment measures 1.5" in length and the tooth is approx. 5/8" long by 1/4" wide at the widest point. The top of the tooth appears to be worn almost completely smooth. When I got home, I was rinsing the sand off the jawbone fragment when the tooth came free of its socket from the top, and a tiny shell of an unerupted tooth fell out of the bone from the bottom.

Can anyone direct me towards an ID?

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Zookeeperfossils.com

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Can't help with the ID but WOW, Great find! I love teeth in the jaw!!! :fistbump:

Every once in a great while it's not just a big rock down there!

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Definitely not a meat eater. Looks like a very worn Llama or deer molar, leaning to the deer side-----Tom

Edited by Foshunter

Grow Old Kicking And Screaming !!
"Don't Tread On Me"

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I believe the first 2 photos are the lingual side. Third photo is facial and last photo is occlusal.

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Zookeeperfossils.com

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Looks like deer----Tom

Grow Old Kicking And Screaming !!
"Don't Tread On Me"

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Given how worn that tooth is, and the fact that there was an unerrupted tooth beneath it, I'm guessing that the worn tooth is a dp4 - the deciduous 4th lower molar, which, in ungulates, is very much like the 3rd lower permanent molar - it has 3 lobes.

The plural of "anecdote" is not "evidence".

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Miatria,

I have a new possibility -- once again likely too large a mammal for your tooth -- http://www.thefossilforum.com/index.php?/topic/26375-mammal-molar/

See this link: http://www.blackriverfossils.org/MarineMammal/Metaxytheriumsp/tabid/53/Fossils/3738/Default.aspx

and take a look at teeth & roots at this site:

http://paleoenterprises.com/Manatees.htm

The White Queen  ".... in her youth she could believe "six impossible things before breakfast"

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Thanks for the suggestions, Shellseeker! The jaw is much more delicate than dugong. Probably deer and I will enjoy it as a visceral demonstration of the process of tooth replacement in ungulates.

Zookeeperfossils.com

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