Hi, @ddeyo – if you are interested in narrowing down the geologic context check out Macrostrat: https://macrostrat.org/map/#/z=10.0/x=-81.7669/y=27.2210/bedrock/lines/

You can look for your exact collecting location to figure out the formation & age!
Talk to you soon,
Jen

If you are interested in updating your geochronology and lithostratigraphy you can read more about the location and rock on Macrostrat: https://macrostrat.org/map/#/z=10.5/x=-81.7630/y=27.2074/bedrock/lines/

You may need to pin point your exact location to be sure but it’s a good start!
Talk to you soon,
Jen