The front page for displaying the data is a hierarchical listing of major taxa, each appearing as a hyperlink that leads into the database at that point in the hierarchy. We have a front page for the Acoelomorpha plus Platyhelminthes:

and a separate page for the Gnathostomulida:

Clicking on any of the hyperlinked taxonomic names will show the taxonomic hierarchy of the taxon selected, including all taxa above that taxon and all taxa in the hierarchy immediately below it, in the next lower taxonomic category.