the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Echinodermata (phylum)
Echinozoa (superclass)
Echinoidea (class)
Euechinoidea (subclass)
Temnopleuroida (order)
Toxopneustidae (family)
[hide inferior taxa]
Lytechinus (genus)