in displayOccurrenceAddEdit, if there are more than 50 occurrences already, user must select which batch of 50 occurrences to edit
in displayOccurrenceAddEdit, if there are more than 50 occurrences already, user must select which batch of 50 occurrences to edit


paleobiodb/pbdb-new,paleobiodb/pbdb-new,paleobiodb/pbdb-new,paleobiodb/pbdb-new,paleobiodb/pbdb-new