Agate or fossils?

[gemsnmore38]

Any ideas on the name of this stone. Agate or fossils?

 

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[stdenis_jd]

Definitely fossils. Looks to be plants of some sort, not sure of the names though. Limestone with a ton of ancient marine plant life.

 

[austin]

Fossiliferous Limestone is the stone. Used for building here in Texas. Polishes up nice. Looks like an ancient reef...

 

[Digzit2]

Found some kinda like that here in illinois.