Goals and limitations of the vignette | Background on geographic ranges between marine environments | Prepare taxonomic occurrence data | Categorise environment associated with occurrences | Assign per-taxon environmental preferences | Spatially subsample each environment | Summed Common Occurrence Rate between environments | Contrast results from non-subsampled data | Average taxon range size between environments | References

Contents | Why to subsample spatially | Prepare Paleobiology Database records | Subsampling examples | Circular subsampling | PBDB collections, references, and duplicate entries | Nearest-neighbour subsampling | Latitudinal subsampling | Analysis on subsampled data | References