Help Identify Possible Fossils!

[Jarl]

Hello,

Here follows some photos of some of fossils, or 'maybe' fossils that I foraged for along local water ways. I know some of them are fossils, but a few have me scratching my head. I can explain some of my thoughts individually on some of these. If anyone needs more specific views I can take more photos if necessary.

I know this isn't 'Smithsonian' material, but I am nonetheless a constantly curious person...always want to know where everything came from and what it is.

Thanks.

 

[GatorBoy]

Good morning could you please add where these were found?
I see several pieces of limestone some look to have casts of creatures in them

 

[Jarl]

All found in Iowa, along Cedar River and local creeks. The bottom left photo, these were found in a pile of dirt left over from grave plots. So, I can only assume the dirt was local to the cemetery...which again slopes down towards a local creek.

 

[Harry Pristis]

First image, clockwise from the left:
--May be tentaculites. Can't see any detail, but they may be water worn. Could be trace fossils as easily.
--May be a garnet in matrix
--trilobite. The rear end (pygidium) is damaged but visible in outline.
--gastropod . . . a snail.
I don't recognize the things in the other images.

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[Jarl]

Thanks for the input Harry Pristis. Hmm, never would have thought that to have been a garnet in matrix...I was thinking it was probably a pyrite nodule...considering that the matrix seems to be limestone of some sort.