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White River Bear Dog Skull?


RCFossils

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I have had this interesting skull for many years and was hoping someone might be able to narrow down what it is.

I do not have any collection information as the person who found it is deceased.

I know it is from the White River/ Brule formation.

My best guess is some type of Beardog Daphoneus?

Any help would be appreciated.

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AC7E3985-78E8-4A3D-BB01-07DE61495B94.jpeg

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Looks like Hyaenodon to me.

 

Hyaenodon crucians (sp?) on top.

 

Daphoenus vetus (Bear Dog) on bottom

 

If you look at the carnassials, you will notice Hyaenodon has a very flat bladed shearing tooth, and actually uses multiple teeth (M1-M2) in a row to make a very large shearing surface.  The bear dog on the other hand, has a triangluar carnassial (P4) followed by 3 crushing teeth (M1-M3) after.

 

Let me know if better pictures are needed.

DSC00419.JPG

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Looks like Daphoenus to me. Ive had both a complete Bear Dog and Hyaenodon skulls in my collection and have handled others but Im far from an expert. This skull is slender with smaller teeth when compared to a creodont. 

Many times I've wondered how much there is to know.  
led zeppelin

 

MOTM.png.61350469b02f439fd4d5d77c2c69da85.png PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png IPFOTM.png IPFOTM2.png IPFOTM3.png IPFOTM4.png IPFOTM5.png

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13 hours ago, RCFossils said:

I have had this interesting skull for many years and was hoping someone might be able to narrow down what it is.

I do not have any collection information as the person who found it is deceased.

I know it is from the White River/ Brule formation.

My best guess is some type of Beardog Daphoneus?

Any help would be appreciated.

 

 

 

Nice skull.  Any chance we can get some closeup photos of the good teeth?

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species of Hyaenodon are basiclly bsed on size.  This one is not huge, I would guess H. montanus.  This is only a guess. 

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5 hours ago, RCFossils said:

Thanks for the input.

Here are a few more images.

 

 

 

 

Thanks.  I'm with JPC.

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