def taxonomy_levels_below(taxa_level):
    """
    E.g. 'Order' --> ['Family', 'Genus']
    """
    p_levels = ['Kingdom', 'Phylum', 'Class', 'Order', 'Family', 'Genus']
    position_of_taxa_level = p_levels.index(taxa_level)
    return p_levels[position_of_taxa_level + 1:]