Kociolek, J.P.; Blanco, S.; Coste, M.; Ector, L.; Liu, Y.; Karthick, B.; Kulikovskiy, M.; Lundholm, N.; Ludwig, T.; Potapova, M.; Rimet, F.; Sabbe, K.; Sala, S.; Sar, E.; Taylor, J.; Van de Vijver, B.; Wetzel, C.E.; Williams, D.M.; Witkowski, A.; Witkowski, J. (2024). DiatomBase.
Pinnularia directa W.Smith, 1853. Accessed through: Glover, A.G.; Higgs, N.; Horton, T. (2024) World Register of Deep-Sea species (WoRDSS) at: https://www.marinespecies.org/deepsea/aphia.php?p=taxdetails&id=172717 on 2024-11-25
Glover, A.G.; Higgs, N.; Horton, T. (2024). World Register of Deep-Sea species (WoRDSS).
Pinnularia directa W.Smith, 1853. Accessed at: https://marinespecies.org/deepsea/aphia.php?p=taxdetails&id=172717 on 2024-11-25