• Home
  • Practitioners
  • Morphology
    • All Morphological Groups
    • Centric
    • Araphid
    • Eunotioid
    • Symmetric Biraphid
    • Monoraphid
    • Asymmetric Biraphid
    • Epithemioid
    • Nitzschioid
    • Surirelloid
  • Genera
  • Species
  • Glossary
  • About Us
    • About
    • News
    • Projects
    • Review Board
    • Taxon Contributors
    • Contact Us
  • What are diatoms?
Diatoms of North AmericaDiatoms of North America
Diatoms of North America
  • Practitioners
  • Morphology
    • Centric
    • Araphid
    • Eunotioid
    • Symmetric Biraphid
    • Monoraphid
    • Asymmetric Biraphid
    • Epithemioid
    • Nitzschioid
    • Surirelloid
  • Genera
  • Species
  • Glossary
  • About Us
    • News
    • Projects
    • Review Board
    • Taxon Contributors
    • Contact Us
  • What are diatoms?
Diatoms of North America

Citation

Wolfe, A.P. and Siver, P.A. (2009) Three extant genera of freshwater thalassiosiroid diatoms from Middle Eocene sediments in northern Canada American Journal of Botany 96 (2): 487-497

Publication

10.3732/ajb.0800307

Genera

Cyclotella Iconic
Cyclotella
Puncticulata Iconic
Puncticulata

Diatoms of North America

The source for diatom identification and ecology

Cite as: Spaulding et al. 2021. Diatoms.org: supporting taxonomists, connecting communities. Diatom Research 36(4): 291-304. doi:10.1080/0269249X.2021.2006790

  • Home
  • What are Diatoms?
  • About Us
  • Contact Us
  • Practitioners
  • Morphology
  • Genera
  • Species
  • Glossary
Privacy Policy