Ordovician in Tennessee (Help!)

[Terri]

This gastropod is probably a better example (than the ones I posted), closer species (?) to the fractured one. Makes more sense in comparison.

 

[Terri]

Here's a couple different views of the B.C.(?) in post #496, this is after acid. The matrix sizzled, I figured it would being limestone. I didn't have a dropper so I tried using a little brush to put a drop on the fossil, ended up getting it all over (the fossil), it sizzled too but there were streaks of matrix on the fossil so, in answer to if it's silicified, I don't know..too much sizzling going on, including a spot on my finger, finger didn't really sizzle though, just ate through a couple layers of skin, ouch.

 

[Architeuthoceras]

Be very careful working with acid Do you think it is the same form as your avatar?

 

[Terri]

Be very careful working with acid

I agree!

 

[Terri]

Do you think it is the same form as your avatar?

It's looking like it to me, I may be able to remove most of the matrix (very carefully).

 

[DWhatley]

Boy do I enjoy watching you work (from afar )

 

[Terri]

(from afar )

May be the safest place to watch from!

 

[Terri]

Endoceras?

 

[Architeuthoceras]

I don't see any endocones to verify...

 

[Terri]

Well, what do you see? It's a tiny little thing, hard to get better pictures but I'll try again tommorrow. Do you think there's enough there to get close at all to an id.?

 

[Architeuthoceras]

The siphuncle may be a lot wider, and maybe actinocerid, endocerid, or ?

 

[Terri]

I don't know if this helps any but the only other decent pic. so far, a little different view..

 

[Architeuthoceras]

Still just a little sliver of the siphuncle, not enough for a good ID.

 

[Terri]

Oh well...

 

[Terri]

If the gastropod below the tip of the hammer is an internal mold then I'm going to say the one above and center is an external mold (until and if corrected) for some reason I want to call it a cast.