Unknown fossil?

[PrehistoricWonders]

Hi,

This fossil is from an unknown location and I was wondering if anyone knew what it is? It appears to have schreger lines on it. It’s 3” long by 1” wide. 

[Pterygotus]

I’m no expert but some kind of tooth maybe? Horse?

[fossilus]

Does look like schereger lines, which I believe would make it a piece of mastodon tusk if they intersect at around 90 degrees.

[Fossildude19]

Cropped and sharpened. 

 

[minnbuckeye]

Something just doesn't look right regarding schreger lines but we will wait for more knowledgable forum members to weigh in.

 

27 minutes ago, fossilus said:

I believe would make it a piece of mastodon tusk if they intersect at around 90 degrees.

Found this regarding angles of schreger lines: 

 

Figure 2.5 Transverse section of elephant ivory showing the characteristic checkerboard pattern. Two lines of Schreger have been superimposed, and the angle of their intersection helps to differentiate the type of ivory. In elephant ivory the angle is greater than 115°, while in mammoth ivory the angle is less than 90°.

Source: Courtesy of Dr S. O’Connor, University of Bradford and the Hunterian Museum at the Royal College of Surgeons.

[Bone Daddy]

I agree about something not being quite right about the lines. I've found a lot of ivory chunks and this one doesn't quite look right for ivory. Weird bone or tooth perhaps. It's definitely "something"....