Included datasets in rangeBuilder
The crotalus dataset is the result of a query for genus Crotalus on the VertNet
search portal (http://portal.vertnet.org/search), and has been thinned and lightly
filtered, to serve as an example dataset for this package.
The gshhs dataset is a simplified version of the low resolution version of the
GSHHG (the Global Self-Consistent, Hierarchical, High-resolution Geography Database)
available for download from https://www.soest.hawaii.edu/pwessel/gshhg/.
Wessel, P., and W. H. F. Smith, A Global Self-consistent, Hierarchical, High-resolution Shoreline Database, J. Geophys. Res., 101, 8741-8743, 1996.