Secondary subdivision is by continents arranged alphabetically: Africa, Asia, Australia/New Zealand, South America, and North America.
Tertiary subdivision is by Country arranged alphabetically, except for North America where it is by statearranged alphabetically.
Below that, subdivision is by Formation (alphabetically) and Locality Prefix+Locality Number by prefix alphabetically and then by locality number numerically. Please note that localities starting with prefixes other than a 'V' precede the more common V-localities.
Within locality, specimens should be arranged taxonomically,
following Romer's classification.