Heterokontophyta (Chromophyta)
Phaeophyceae
| ALGAE – Phaeophyta | Smithsonian Institution, National Museum of Natural History | |
| Brief Summary about Phaeophyta (including Images) | Curtis Clark, California State Polytechnic University, Pomona | |
| Botany Online – Phaeophyta | University of Hamburg, Faculty of Biology | |
| Introduction to the Phaeophyta | University of California, Museum of Paleontology | |
| Phaeophyta | University of Hawai, Manoa |