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Bathornis Species?


MegaceropsAreCool

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It is a Toe Bone found in the Brule Formation Custer County, South Dakota. It’s dated to be from 35-30 million years old. The Bone is small, only 1.6 centimeters. I’m not sure what species it is, if anyone possibly knows or know a species it can’t be it would help a lot.

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why do you call it Bathornis?  It looks like an oreodont or a camel  toe bone from here.  

Bathornis is a bird and is extremely rare.  

Edited by jpc
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it’s definitely not camel or oredont, it would have to be much bigger

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Actually it wouldn't. Some oreodonts are small. But that very much resembles oreodont toe bone to me. And at 1.6 cm would be about right for a medium to sm oreodont.

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I’m looking through an osteology book, and i also got this reference for cariama just to show this is a bird

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It would be nice to see the side view of both the cariama and some mammal toe bones to really compare.  Somewhere here I have a nice camel foot that when I find a minute I can try to fond and photograph it.  But right now I am stalling form doing my taxes....

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I can look for some more references

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I have a friend that knows an Osteologist I can ask him

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4 hours ago, jpc said:

It would be nice to see the side view of both the cariama and some mammal toe bones to really compare.

Ask and you shall recieve. Here is a full sized culbertsonia oreodont toe bone I’m still cleaning up from a bone block with skull i been working on. It’s 1.9 cm long. I’ve got culbertsonia skulls that are a quarter the size of the animal this bone belonged to. Sespia natida and leptauchenia oreodonts are even smaller then that… i dont have a picture or sample to hand at the minute but the sespia, leptauchenia, and some of the smaller oreodonts the bone has a similar shape but is thinner and more gracile I suppose the word would be… I need to find it but I’ve got one that looks very similar to that one.

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Edited by Randyw
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Found it! This is an oreodont toe also. It’s 1.7 cm long. I prepped this out of a block with some oreodont rib and spine pieces

 

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Edited by Randyw
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can you describe the texture like what it feels like

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also how tall is the toe bone (height)

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texture?  texture is irrelevant.  or is it...?

on Randy's first toe picture, see that notch on the extreme right edge?  I don't think birds (or dinosaurs) have that.  Yours has it too.  Mammal. 

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