Something new at the river

[OldScout]

Hello. I found this at the river. First time I have found a fossil with color in it. Kind of pink red and spotted. Any help to ID would be much appreciated. I find lots of shells like the second picture (although this is the only whole -intact shell with top and bottom still together), but never any like the first. Thank you very much for any help! Glad to be in the forum now.
Jeb.

 

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[Tigger]

The top one may need a few more pix to identify, or a better rockhound to ID it, but I can help you with the second - it's a brachiopod. It is cool finding them intact, I really like their shape. Keep lookin' down!

Tigger

 

[OldScout]

Thank you Tigger. I will also try to post some different shots of the first one. I found it in the river. When it was wet, if had some pretty great color. Dry it looks a bit dull. Thank you again for the help.

 

[OldScout]

Photos from other angles. They all look pretty similar, non distinguishing to me. If anyone can help, that would be great.

 

[Harry Pristis]

The colorful object appears to be a rock.

 

[OldScout]

So...you're saying I discovered a new and rare ancient creature that resembles a rock? ? ? JACKPOT!!!

 

[OldScout]

Rock or fossil

So I was about to dump this in the trash as a rock, but the more I hold it and look at it, it just does not seem like a rock. I took some close-ups and found these symmetric lines all running around the bottom edges. I don't think the lines favor a rock. Any thoughts ?