Fossils found in Kentucky

[LadyClaire]

I pulled these out of a creek bed near my mom's house. That creek is really rich in crinoids and other small fossils. I know what the top ones are, but does anyone have an idea as to what the bottom fossil cluster is? I've never found one like it before and wasn't sure of the identification.

 

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[Harry Pristis]

View attachment 661959

I pulled these out of a creek bed near my mom's house. That creek is really rich in crinoids and other small fossils. I know what the top ones are, but does anyone have an idea as to what the bottom fossil cluster is? I've never found one like it before and wasn't sure of the identification.

My best guess is that it is a conulariid (or multiple conulariids), but that is a low-confidence guess. It might be useful to see the exterior of the shell. Conulariids typically have discernible "growth" lines perpendicular to the long axis..