A helper function to build a new chronology object from the
Neotoma API response.
Usage
build_chron(x)
Value
A single chronology object.
Arguments
x
A chronology element from the API JSON output.
Author
Socorro Dominguez
Details
This function is an internal function called from
build_collunit() to help support the translation between the JSON
representation of data in the API and the R implementation.