Ranks considered as valid by refdb
valid_taxo_rank()a vector of ordered ranks.
This is a simplified version of the
list rank_ref available in taxize.
valid_taxo_rank()
#> [1] "domain" "superkingdom" "kingdom" "subkingdom"
#> [5] "infrakingdom" "phylum" "subphylum" "infradivision"
#> [9] "superclass" "class" "subclass" "infraclass"
#> [13] "subterclass" "parvclass" "megacohort" "supercohort"
#> [17] "cohort" "subcohort" "infracohort" "superorder"
#> [21] "order" "suborder" "infraorder" "parvorder"
#> [25] "superfamily" "family" "subfamily" "supertribe"
#> [29] "tribe" "subtribe" "genus" "subgenus"
#> [33] "section" "subsection" "series" "species"
#> [37] "infraspecies" "subspecies" "variety" "subvariety"
#> [41] "stirp" "form" "subform"