Trilobite Rock

[Bev]

Ordovician

Galena Formation probably Prosser member

SE Minnesota

 

For scale note penny at upper left.

Below Part 1

Part 2

Part 3 I guess will be in the reply.  :-)

 

[Bev]

Part 3

Part 4

Part 5 will be in next reply...

[Bev]

Part 5

 

Other rocks with trilo parts collected in same location:

 

Rock 1

 

Rock 2

 

 

Some of the round parts that may be trilo spines reminded me of crinoid links in this crinoid rock found at the same spot.

[Bev]

This was like a half hour quicky hunt on the way back from the lumber mill. My loot for the stop.  :-)

 

Got a really nice freshly broken out Fisherites.

 

Graptolites.

And I believe these are imprints of cephs.

We had had torrential rains the night before and most of the snow was gone, but when I got home it started snowing again...

[GeschWhat]

Wow! 

[Monica]

Hi Bev!

 

I have no idea re: your trilobites, but I think I see a cute little brachiopod that looks like one I sometimes see up here in the Georgian Bay Formation (Upper Ordovician) called Sowerbyella sericea - I've cropped your image labeled "Part 1" so you can see the little guys I'm talking about:

 

As for the big, dark think in "Rock 1" - I don't know what it could be - perhaps it is part of a trilobite, although I'm not seeing and segmentation so if it were, I imagine it would be part of the cranadium?  Anyway, in that same rock, I definitely see crinoid bits (red rectangles) and perhaps also a bryozoan (blue oval) - can you see tiny holes in the bryozoan-like specimen?  See below:

 

As for what you think are imprints of orthoconic nautiloids in your last image, I agree - that's what it looks like to me!  See below in yellow:

 

Thanks for sharing!

 

Monica

 

 

 

[Fossildude19]

I'm afraid that without any prepping it will be difficult to ascertain whether some of your items are brachiopods, parts of gastropods, or trilobites.  

[minnbuckeye]

Those graptolites appear very large. I like that!!. All I can find locally is small ones. Great find.

[FossilDAWG]

I have to confess I cannot see any trilobites in your "trilobite rock" parts 1-5.  Perhaps some closer photos, maybe lightly moistened (but not so wet as to create glare or reflections) could highlight what you want us to see.

 

Don

[Bev]

Thanks! I'll see what I can do in the prep dept., so that you can see what I think I can see.  :-)

 

[Bev]

Well, I went out to my fossil barn and it is buried in Christmas stuff not put into the barn loft yet - no getting at my muriatic acid for a while yet. However, I put the Fisherites rock by my electric fireplace in the garage, which I am "Bev Caving" and Bob observed that it has the outline of a dog's head! I saw the fossil, he saw the dog's head. LOL  :-) Thought you might enjoy this pic. A beautiful Maclurites right below the moose lamp, tall Macs with a ceph on top to the left and the "dog's head" Fisherites to the right. Fossils as decor.  :-)

 

[Wrangellian]

There's a very Northern looking tableau!

I saw the dog as soon as you mentioned it (but not before)

[Bev]

11 hours ago, Wrangellian said:

There's a very Northern looking tableau!

I saw the dog as soon as you mentioned it (but not before)

 

Yup, I didn't see the dog either until Bob mentioned it. He didn't see the fossil! The Eagle Bluff Skills School just posted this on my fossil hunting classes.  :-)

 

 

[Bev]

The above Maclurites is the one below the moose lamp.  :-)