• Valve is organized around a line (bilateral symmetry)
  • Valves often asymmetrical to the apical axis
  • Raphe system is weak, with raphe located on valve mantle and face
  • Only raphid group with 2 or more rimoportulae (labiate processes)

Note: The specimen(s) pictured to the right are not from Antarctica, excepting Naviculoid example.

Taxon Name Basionym synonyms ID
Eunotia fallax 145
Eunotia muscicola var. muscicola Eunotia polydentula 146
Eunotia paludosa var. paludosa 147
Eunotia sp.#1 148