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Unknown FL carnivorous mammal jaw???


RyanDye

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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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rydysig.JPG

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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.

rydysig.JPG

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@PrehistoricFlorida

There are a couple things it could be...
 

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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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

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

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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. 

rydysig.JPG

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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.

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

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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.

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

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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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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.

 

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

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