WoRMS Get Classification

Get the full taxonomic classification tree (ranked lineage) for a marine taxon from the World Register of Marine Species (WoRMS) by its AphiaID. Returns a nested hierarchy from the top rank (Biota/Kingdom) down to the queried taxon, with the AphiaID, rank, and scientific name at each level (e.g. Kingdom -> Phylum -> ... -> Species). This is the canonical post-resolution enrichment used after finding an AphiaID with WoRMS_search_species. No API key required.