Biota (Life)
Eukaryote (Eukarya)
Chromista
Harosa
Halvaria
Heterokonta
Ochrophyta (Heterokontophyta)
Khakista (Diatomista)
Bacillariophyceae
Bacillariophycidae
Bacillariophycanae
Naviculales
Pinnulariaceae
Pinnularia
Pinnularia semicruciata (67824453)
Children (2 direct children, 2 direct and indirect children):
Pinnularia semicruciata var. arctica
Pinnularia semicruciata var. alaskaensis