Orthocone nautiloid

[Mainefossils]

Fossil forum, 

This is another fossil from the Leighton formation. It is a completely undamaged orthocone nautiloid. I think it is the same species that I showed earlier in the possible fossil coral post, but I am not sure. The external mold has the same grooves, but the internal mold is divided into two sides, each with bumps. Is this normal for a nautiloid fossil? Any help would be appreciated. Here are some pictures of it (internal mold on the left, external mold on the right):

 

     

 

 

[Rockwood]

1 hour ago, Mainefossils said:

The external mold has the same grooves, but the internal mold is divided into two sides, each with bumps. Is this normal for a nautiloid fossil?

As normal as crushed culverts on a muddy logging road. Same principle. 

[Fossildude19]

It is quite common to find orthocone nautiloids crushed. 

The shells could be fragile, and crush easily under the weight of sediments. 

[Mainefossils]

Thanks so much!

[Rockwood]

If I might share a little Maine background here.

I live closer to Quebec city than to the Leighton formation. It's in a different climate zone than I am.

I suspect if there are good digs left around it may be a private site too.