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@savannah-devaine Lovely fossil! It is an extinct type of coral commonly called a horn coral, or more scientifically a rugose coral. It’s a type of solitary coral which was common before the days of the dinosaurs. If you wouldn’t mind completing a few extra steps, I’d love to add this to our research database!

Steps:
Take a photograph of the specimen with a scale. A ruler is preferred, but a coin will do in a pinch.
For the classification column, use the taxon wizard to fill out higher taxonomy. Just put in the most specific identification you feel reasonably confident in, for this one Hexacorallia for class (but please put rugose or horn coral in the common name section)
For the lithostratigraphy, you can use an online tool called Rockd (they have an app and a website). Just find your location on the map and press on it and it will give you the formation and/or group of bedrock in your area. I found it for you this time, it’s the Bronson Group (no formation information from the map unfortunately).
For Geochronology, use Rockd as well labeled as age. This time I looked it up for you, it’s from part of the Pennsylvanian Period (specifically 312-303 Million years old, but that’s not necessary to put in). You should use the geochronology wizard so it fills out all the boxes. If you are having trouble with this, you can manually put in the eon (Phanerozoic) and era (Paleozoic)
For location, could you change it from Lamoni to Terra Haute?

Let me know if you need any help or have any questions and tag me when you are done. Thanks for sharing!
Best,
Mason