Hi, I have searched for good tutorials on how to use Macrostrat's API for importing data into R. I am new to using API in R and it seems a bit convoluted to me. I would like to extract geologic mapped polygons of rock units for either the entire globe or northern hemisphere and spatally join it with Earthchem isotope data in R. However, most of what I see for tutorials consists of methods for extracting specific attributes of data via parameter designation. I am keen on finding out how to extract all spatial, temporal, and descriptive rock data for large areas of the planet for a Sr isotope project. Any advice on how to do so would be much appreciated. Thanks!