Help identifying...I am new to this

[j.duncan]

Im a radiation physicist by trade, and I've always been interested in fossils and rocks, but I never had the land or time to really dive into it. Now that I'm more settled in life and purchased about 50 acres last year, I’ve started collecting some interesting rocks and fossils on my property. I live in southeast Missouri, on one of the ridge lines near Crowley’s Ridge. However, I’m completely new to this and could use help identifying what I’ve found. Here are a few interesting formations—possibly fossils or petrified wood? Honestly, it could be anything—I’m not sure.

Edited 3 hours ago by j.duncan