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Xiphactinus

Small jaws - Nebraska White River Oligocene

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Xiphactinus

My wife and I found these small jaw fragments in W. Nebraska earlier this month. Not sure of the ID's.

 

Each is about 3 cm long.

 

Help is appreciated!

 

Jaw 1

jaw 1.JPG

 

Jaw 2

jaw 2.JPG

 

Jaw 3

jaw 3.JPG

 

Jaw 4

Jaw 4.JPG

 

Jaw 5

Jaw 5.JPG

Edited by Xiphactinus
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Xiphactinus
10 minutes ago, jpc said:

1 ... can't say

2 looks oreodontish

3 is intriguing

4 looks like Poebrotherium jaw... camel.  

5 looks like a small oreodont maxilla, but I have no scale.  

 

There... that's my expert advice.

Looks like a fun trip.  

Thanks @jpc!

I think 5 is small oreodont....the entire piece is about an inch long. 

Any guess on #3? It's kind of weird.  #4 I had tentatively ID'd as Leptomeryx….Your ID is more interesting!

 

Yes, it was a very fun trip. I'll do a trip report soon.

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jpc

I think 3 is too big for Leptomeryx.  i tossed between Lepto and camel, but I am judging by size.  

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Brian Roland

Number one definitely looks like a Ptychodus rugosus tooth about 90 percent sure jus my personal opinion

They also lived in Nebraska

 

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Al Dente
5 hours ago, Brian Roland said:

Number one definitely looks like a Ptychodus rugosus tooth about 90 percent sure jus my personal opinion

They also lived in Nebraska

 

This is a mammal jaw from the Oligocene White River Formation. Ptychodus became extinct during the Cretaceous.

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