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RyanDye

Unknown FL carnivorous mammal jaw???

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RyanDye

Anyone know what this jaw is from? Apparently collected back in the 90's in Tampa Bay Florida, I'm not sure on the geography of the area, but it also says allegedly it's from the pleistocene. The description of it is specific enough to say it was collected in a river deposit, but i'm not sure which. I agree that it's a carnivorous mammal, but beyond that I have no idea, any clue what it is?

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-AnThOnY-

Wolf?

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RyanDye
8 minutes ago, -AnThOnY- said:

Wolf?

Kind of small for that though, than again that's what I first thought of when I saw it too.

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Auspex

@PrehistoricFlorida

There are a couple things it could be...
 

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Shellseeker

I am not sure, it is a carnivore, but you need to provide some photos and specific measurements. The tooth looks like a carnassial. What is it's exact length? That is going to be one way to differentiate, say coyote from fox, from wolf, or jaguar from panther.

You need to provide a photo directly down to the  jaw sockets...once again measurements.

@Harry Pristis ended up identifying this jaw as Dire Wolf

DSCN0970cm.thumb.jpg.73baef3aa0c9c84d741a101830662918.jpg.39448cc110a1d130d2332f19eb36f131.jpgDireWolfRightMandible.jpg.b2517797f4b98d0675dea8dcac521079.jpg.0a4c088d11a96f2a0c95452d594180ca.jpg

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RyanDye
31 minutes ago, Shellseeker said:

I am not sure, it is a carnivore, but you need to provide some photos and specific measurements. The tooth looks like a carnassial. What is it's exact length? That is going to be one way to differentiate, say coyote from fox, from wolf, or jaguar from panther.

You need to provide a photo directly down to the  jaw sockets...once again measurements.

@Harry Pristis ended up identifying this jaw as Dire Wolf

DSCN0970cm.thumb.jpg.73baef3aa0c9c84d741a101830662918.jpg.39448cc110a1d130d2332f19eb36f131.jpgDireWolfRightMandible.jpg.b2517797f4b98d0675dea8dcac521079.jpg.0a4c088d11a96f2a0c95452d594180ca.jpg

I can't take any photos of this since this isn't my specimen, however I was planning on purchasing it whether or not it got ID'd beforehand, so once I get it i'll take some more precise photos. 

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Auspex
44 minutes ago, Shellseeker said:

I am not sure, it is a carnivore

It's pretty banged-up, right where I wish it weren't, so that I am reluctant to rule out something like River Otter.

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Shellseeker
38 minutes ago, Auspex said:

It's pretty banged-up, right where I wish it weren't, so that I am reluctant to rule out something like River Otter.

I am right with you Chas, One of my recent experiences in Paynes Creek was a young otter came downstream munching on breakfast, a water snake, ignoring me until he/she got 5 feet apart!!!  We BOTH beat a hasty retreat!

I include that river otter as "carnivore":D with sharp teeth.

I think the size likely eliminates wolf. My example above is 3 inches long.

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siteseer

The tooth is incomplete but there's enough that I think it's a lower first molar of a coyote.  The size is about right too.  It must be a juvenile with the molar just coming in.

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PrehistoricFlorida

It’s a juvenile canid jaw. Based on size, coyote is most likely. 

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RyanDye

Just got the jaw, will these do? I can take more. @Shellseeker

20180620_135256.thumb.jpg.0f7bfe9e2820243d58e7d5bb049bed76.jpg20180620_135230.thumb.jpg.a03f12e83097a48fb181d1bfc45ae1ab.jpg20180620_135200.thumb.jpg.75e2ce8abd27e517c7a09c53b82027cb.jpg

 

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Shellseeker

The jaw sockets most resemble canid; the m1 seems to be approximately 20 mm, and more that one person has suggested juvenile coyote. Here is a photo provided by Harry Pristis  in this forum's gallery, indicating a decent occlusal length for coyote is .8 inch or 20.32 mm.

When it comes to identifications, that's about as good as it gets.

 

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